Страница 45, часть 2 - гдз по физике 10 класс учебник часть 1, 2 Генденштейн, Булатова

Авторы: Генденштейн Л. Э., Булатова А. А., Корнильев И. Н., Кошкина А. В.

Тип: Учебник

Издательство: Просвещение

Год издания: 2019 - 2026

Уровень обучения: базовый и углублённый

Часть: 2

Цвет обложки: бирюзовый Изображена ракета

ISBN: 978-5-09-091731-5

Часть 2. Cтраница 45

App\Models\BookPage {#1003 // resources/views/models/book_page/default.blade.php
  #connection: "mysql"
  #table: "book_pages"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
  #with: []
  #withCount: []
  +preventsLazyLoading: false
  #perPage: 15
  +exists: true
  +wasRecentlyCreated: false
  #escapeWhenCastingToString: false
  #attributes: array:21 [
    "id" => 1410270
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "45"
    "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/page-2-45"
    "field_display_title" => "45"
    "field_folder" => "2"
    "field_image_name" => "45"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1047
      #items: array:1 [
        0 => App\Models\Branch {#1008
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1408479
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1007
              #items: array:1 [
                0 => App\Models\Term {#1006
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [ …7]
                  #original: array:7 [ …7]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "4"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1009
              #items: array:1 [
                0 => App\Models\Book {#1010
                  #connection: "mysql"
                  #table: "books"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:50 [ …50]
                  #original: array:50 [ …50]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1044
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1408479
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "2"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1007}
            "field_page_start" => "4"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1009}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1044}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1082
      #items: array:1 [
        0 => App\Models\Book {#1045
          #connection: "mysql"
          #table: "books"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: false
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:50 [
            "id" => 2739
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1048
              #items: array:1 [
                0 => App\Models\Term {#1046
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:10 [ …10]
                  #original: array:10 [ …10]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_class" => Illuminate\Database\Eloquent\Collection {#1049
              #items: array:1 [
                0 => App\Models\Term {#1050
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1051
              #items: array:1 [
                0 => App\Models\Term {#1052
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author" => Illuminate\Database\Eloquent\Collection {#1053
              #items: array:4 [
                0 => App\Models\Term {#1054
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Term {#1055
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Term {#1056
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                3 => App\Models\Term {#1057
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1058
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1059
              #items: array:1 [
                0 => App\Models\Term {#1060
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:10 [ …10]
                  #original: array:10 [ …10]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1061
              #items: array:1 [
                0 => App\Models\Term {#1062
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1063
              #items: array:1 [
                0 => App\Models\Term {#1064
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_series" => Illuminate\Database\Eloquent\Collection {#1065
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1066
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1067
              #items: array:1 [
                0 => App\Models\Term {#1068
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1069
              #items: array:1 [
                0 => App\Models\Term {#1070
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
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                  #escapeWhenCastingToString: false
                  #attributes: array:10 [ …10]
                  #original: array:10 [ …10]
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => "4"
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1071
              #items: array:1 [
                0 => App\Models\Term {#1072
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
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                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1073
              #items: array:1 [
                0 => App\Models\Term {#1074
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
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                  #original: array:12 [ …12]
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                  #hidden: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
            "field_cover_description" => "Изображена ракета"
            "field_publication_year" => "2019"
            "field_publication_year_until" => null
            "field_part" => "1, 2"
            "field_part_writing" => "Часть"
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебное издание"
            "field_allowed" => null
            "field_reserve_field" => null
            "field_link_to_source" => null
            "field_tasks_count" => "1401"
            "field_priority" => null
            "field_default_folder" => "/fizika_10/gendenshtejn-u/"
            "field_isbn" => "978-5-09-091731-5"
            "field_cover" => array:2 [
              0 => "/media/fizika_10/gendenshtejn-u/covers/cover1.webp?ts=1758220898"
              1 => "/media/fizika_10/gendenshtejn-u/covers/cover2.webp?ts=1758220898"
            ]
            "field_cover_alts" => array:2 [
              0 => ""
              1 => ""
            ]
            "field_covers" => array:2 [
              0 => array:4 [
                "path" => "/media/fizika_10/gendenshtejn-u/covers/cover1.webp?ts=1758220898"
                "alt" => ""
                "width" => "1917"
                "height" => "2817"
              ]
              1 => array:4 [
                "path" => "/media/fizika_10/gendenshtejn-u/covers/cover2.webp?ts=1758220898"
                "alt" => ""
                "width" => "1915"
                "height" => "2821"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1075
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1076
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1077
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1078
              #items: array:1 [
                0 => App\Models\Term {#1079
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
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                  #with: []
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                  #perPage: 15
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1048}
            "field_class" => Illuminate\Database\Eloquent\Collection {#1049}
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1051}
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            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1058}
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            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1069}
            "field_publication_number" => "4"
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            "field_tasks_count" => "1401"
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              0 => "/media/fizika_10/gendenshtejn-u/covers/cover1.webp?ts=1758220898"
              1 => "/media/fizika_10/gendenshtejn-u/covers/cover2.webp?ts=1758220898"
            ]
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              0 => ""
              1 => ""
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              0 => array:4 [
                "path" => "/media/fizika_10/gendenshtejn-u/covers/cover1.webp?ts=1758220898"
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                "width" => "1917"
                "height" => "2817"
              ]
              1 => array:4 [
                "path" => "/media/fizika_10/gendenshtejn-u/covers/cover2.webp?ts=1758220898"
                "alt" => ""
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              ]
            ]
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            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1076}
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1077}
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1078}
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                0 => App\Models\Edition {#1092
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                }
              ]
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            "book_page" => array:2 [
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                "path" => "/media/fizika_10/gendenshtejn-u/0-2/45-1.webp?ts=1758365613"
              ]
            ]
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            "edition" => Illuminate\Database\Eloquent\Collection {#1100}
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        0 => App\Models\BookPage {#3984
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            "field_display_title" => "46"
            "field_folder" => "2"
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            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#4036
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                0 => App\Models\Branch {#1240
                  #connection: "mysql"
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                }
              ]
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            }
            "field_weight" => "0"
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            "content" => Illuminate\Database\Eloquent\Collection {#4057
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                0 => App\Models\Element {#4060
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                }
              ]
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            }
            "next" => array:2 [
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            "tasks" => Illuminate\Database\Eloquent\Collection {#4065
              #items: array:2 [
                0 => App\Models\Task {#4054
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                }
                1 => App\Models\Task {#4047
                  #connection: "mysql"
                  #table: "tasks"
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                  #keyType: "int"
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            "tasks" => Illuminate\Database\Eloquent\Collection {#4065}
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    "previous" => Illuminate\Database\Eloquent\Collection {#3979
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        0 => App\Models\BookPage {#3978
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          #attributes: array:21 [
            "id" => 1410269
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
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            "field_display_title" => "44"
            "field_folder" => "2"
            "field_image_name" => "44"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#3980
              #items: array:1 [
                0 => App\Models\Branch {#1240}
              ]
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#3981
              #items: array:1 [
                0 => App\Models\Book {#1045}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#3982
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#3992
              #items: array:1 [
                0 => App\Models\Element {#3991
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1410270"
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            ]
            "previous" => array:2 [
              "refs" => "1410268"
              "type" => "book_page"
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            "tasks" => Illuminate\Database\Eloquent\Collection {#4185
              #items: array:11 [
                0 => App\Models\Task {#4203
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Task {#4210
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Task {#4222
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
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                  +exists: true
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                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
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                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                3 => App\Models\Task {#4234
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
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                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
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                  +timestamps: true
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                  #guarded: array:1 [ …1]
                }
                4 => App\Models\Task {#4246
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                  +preventsLazyLoading: false
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                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                5 => App\Models\Task {#4258
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
                6 => App\Models\Task {#4270
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                7 => App\Models\Task {#4282
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                8 => App\Models\Task {#4294
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                9 => App\Models\Task {#4306
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                10 => App\Models\Task {#4318
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:21 [
            "id" => 1410269
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/page-2-44"
            "field_display_title" => "44"
            "field_folder" => "2"
            "field_image_name" => "44"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#3980}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#3981}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#3982}
            "content" => Illuminate\Database\Eloquent\Collection {#3992}
            "next" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1410268"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#4185}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "tasks" => Illuminate\Database\Eloquent\Collection {#1081
      #items: array:7 [
        0 => App\Models\Task {#1107
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1409437
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
            "field_page_end" => "45"
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-23"
            "field_display_title" => "23"
            "field_outside_task" => "0"
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1111
              #items: array:1 [
                0 => App\Models\Term {#1108
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1110
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1109
              #items: array:1 [
                0 => App\Models\Branch {#1008}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1230
              #items: array:4 [
                0 => App\Models\Branch {#1240}
                1 => App\Models\Branch {#1245
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                   …3
                }
                2 => App\Models\Branch {#1249 …30}
                3 => App\Models\Branch {#1330 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1151
              #items: array:2 [
                0 => App\Models\Element {#1223 …30}
                1 => App\Models\Element {#1220 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1409438"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409436"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1225
              #items: array:1 [
                0 => App\Models\Book {#1045}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1410269"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1409437
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "44"
            "field_page_end" => "45"
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-23"
            "field_display_title" => "23"
            "field_outside_task" => "0"
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1111}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1110}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1109}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1230}
            "content" => Illuminate\Database\Eloquent\Collection {#1151}
            "next" => array:2 [
              "refs" => "1409438"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409436"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1225}
            "page" => array:2 [
              "refs" => "1410269"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Task {#1188
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1409438
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-24"
            "field_display_title" => "24"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1238
              #items: array:1 [
                0 => App\Models\Term {#1108}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1224
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1192
              #items: array:1 [
                0 => App\Models\Branch {#1240}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1189
              #items: array:4 [
                0 => App\Models\Branch {#1240}
                1 => App\Models\Branch {#1245 …3}
                2 => App\Models\Branch {#1249 …30}
                3 => App\Models\Branch {#1330 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1227
              #items: array:2 [
                0 => App\Models\Element {#1205 …30}
                1 => App\Models\Element {#1204 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1409439"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409437"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1209
              #items: array:1 [
                0 => App\Models\Book {#1045}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1409438
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-24"
            "field_display_title" => "24"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1238}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1224}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1192}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1189}
            "content" => Illuminate\Database\Eloquent\Collection {#1227}
            "next" => array:2 [
              "refs" => "1409439"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409437"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1209}
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Task {#1215
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1409439
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-25"
            "field_display_title" => "25"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1193
              #items: array:1 [
                0 => App\Models\Term {#1108}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1207
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1211
              #items: array:1 [
                0 => App\Models\Branch {#1240}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1213
              #items: array:4 [
                0 => App\Models\Branch {#1240}
                1 => App\Models\Branch {#1245 …3}
                2 => App\Models\Branch {#1249 …30}
                3 => App\Models\Branch {#1330 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1210
              #items: array:2 [
                0 => App\Models\Element {#1190 …30}
                1 => App\Models\Element {#1153 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1409440"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409438"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1197
              #items: array:1 [
                0 => App\Models\Book {#1045}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1409439
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-25"
            "field_display_title" => "25"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1193}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1207}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1211}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1213}
            "content" => Illuminate\Database\Eloquent\Collection {#1210}
            "next" => array:2 [
              "refs" => "1409440"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409438"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1197}
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        3 => App\Models\Task {#1202
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1409440
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-26"
            "field_display_title" => "26"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1208
              #items: array:1 [
                0 => App\Models\Term {#1108}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1195
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1199
              #items: array:1 [
                0 => App\Models\Branch {#1240}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1201
              #items: array:4 [
                0 => App\Models\Branch {#1240}
                1 => App\Models\Branch {#1245 …3}
                2 => App\Models\Branch {#1249 …30}
                3 => App\Models\Branch {#1330 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1198
              #items: array:2 [
                0 => App\Models\Element {#1180 …30}
                1 => App\Models\Element {#1178 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1409441"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409439"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1181
              #items: array:1 [
                0 => App\Models\Book {#1045}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1409440
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-26"
            "field_display_title" => "26"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1208}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1195}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1199}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1201}
            "content" => Illuminate\Database\Eloquent\Collection {#1198}
            "next" => array:2 [
              "refs" => "1409441"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409439"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1181}
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
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          #relations: []
          #touches: []
          +timestamps: true
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          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        4 => App\Models\Task {#1186
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1409441
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-27"
            "field_display_title" => "27"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1196
              #items: array:1 [
                0 => App\Models\Term {#1108}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1179
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1184
              #items: array:1 [
                0 => App\Models\Branch {#1240}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1187
              #items: array:4 [
                0 => App\Models\Branch {#1240}
                1 => App\Models\Branch {#1245 …3}
                2 => App\Models\Branch {#1249 …30}
                3 => App\Models\Branch {#1330 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1185
              #items: array:2 [
                0 => App\Models\Element {#1168 …30}
                1 => App\Models\Element {#1161 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1409442"
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            ]
            "previous" => array:2 [
              "refs" => "1409440"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1169
              #items: array:1 [
                0 => App\Models\Book {#1045}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
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            ]
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            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
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            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-27"
            "field_display_title" => "27"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1196}
            "field_metatags_title" => null
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            "field_h1" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1179}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1184}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1187}
            "content" => Illuminate\Database\Eloquent\Collection {#1185}
            "next" => array:2 [
              "refs" => "1409442"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409440"
              "type" => "task"
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            "book" => Illuminate\Database\Eloquent\Collection {#1169}
            "page" => array:2 [
              "refs" => "1410270"
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          ]
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          #dateFormat: null
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        5 => App\Models\Task {#1176
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
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          #withCount: []
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1409442
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-28"
            "field_display_title" => "28"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1183
              #items: array:1 [
                0 => App\Models\Term {#1108}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1167
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1171
              #items: array:1 [
                0 => App\Models\Branch {#1240}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1174
              #items: array:4 [
                0 => App\Models\Branch {#1240}
                1 => App\Models\Branch {#1245 …3}
                2 => App\Models\Branch {#1249 …30}
                3 => App\Models\Branch {#1330 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1173
              #items: array:2 [
                0 => App\Models\Element {#1156 …30}
                1 => App\Models\Element {#1112 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1409443"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409441"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1157
              #items: array:1 [
                0 => App\Models\Book {#1045}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1409442
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-28"
            "field_display_title" => "28"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1183}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1167}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1171}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1174}
            "content" => Illuminate\Database\Eloquent\Collection {#1173}
            "next" => array:2 [
              "refs" => "1409443"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409441"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1157}
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #changes: []
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            0 => "*"
          ]
        }
        6 => App\Models\Task {#1164
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
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            "field_display_title" => "29"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1172
              #items: array:1 [
                0 => App\Models\Term {#1108}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1155
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1159
              #items: array:1 [
                0 => App\Models\Branch {#1240}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1163
              #items: array:4 [
                0 => App\Models\Branch {#1240}
                1 => App\Models\Branch {#1245 …3}
                2 => App\Models\Branch {#1249 …30}
                3 => App\Models\Branch {#1330 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1162
              #items: array:2 [
                0 => App\Models\Element {#1144 …30}
                1 => App\Models\Element {#1142 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
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              "refs" => "1409442"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1146
              #items: array:1 [
                0 => App\Models\Book {#1045}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1409443
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "45"
            "field_page_end" => null
            "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/29-29"
            "field_display_title" => "29"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1172}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1155}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1159}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1163}
            "content" => Illuminate\Database\Eloquent\Collection {#1162}
            "next" => array:2 [
              "refs" => "1409444"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1409442"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1146}
            "page" => array:2 [
              "refs" => "1410270"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
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          #touches: []
          +timestamps: true
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          ]
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      ]
      #escapeWhenCastingToString: false
    }
  ]
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    "id" => 1410270
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "45"
    "field_url" => "/10-klass/fizika/gendenshtejn-uchebnik/page-2-45"
    "field_display_title" => "45"
    "field_folder" => "2"
    "field_image_name" => "45"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1047}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1082}
    "field_metatags_title" => null
    "field_metatags_description" => null
    "field_h1" => null
    "field_description_top" => null
    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1080}
    "content" => Illuminate\Database\Eloquent\Collection {#1091}
    "next" => array:2 [
      "refs" => "1410271"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1410269"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1081}
  ]
  #changes: []
  #casts: []
  #classCastCache: []
  #attributeCastCache: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
  #observables: []
  #relations: []
  #touches: []
  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Физика, 10 класс Учебник, авторы: Генденштейн Лев Элевич, Булатова Альбина Александрова, Корнильев Игорь Николаевич, Кошкина Анжелика Васильевна, издательство Просвещение, Москва, 2019, бирюзового цвета, Часть 2, страница 45
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