Страница 243, часть 1 - гдз по физике 9 класс учебник часть 1, 2 Белага, Воронцова

Авторы: Белага В. В., Воронцова Н. И., Ломаченков И. А., Панебратцев Ю. А.

Тип: Учебник

Издательство: Просвещение

Год издания: 2024 - 2026

Уровень обучения: углублённый

Часть: 1

Цвет обложки: голубой

ISBN: 978-5-09-121759-9

Часть 1. Cтраница 243

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" => 1507255
    "created_at" => "2026-04-10 00:54:11"
    "updated_at" => null
    "field_page_start" => "243"
    "field_url" => "/9-klass/fizika/belaga-uchebnik/page-1-243"
    "field_display_title" => "243"
    "field_folder" => "1"
    "field_image_name" => "243"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1046
      #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:23 [
            "id" => 1505744
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "1"
            "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" => "6"
            "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" => []
            "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 {#1043
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:23 [
            "id" => 1505744
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "1"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1007}
            "field_page_start" => "6"
            "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" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1009}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1043}
          ]
          #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 {#1080
      #items: array:1 [
        0 => App\Models\Book {#1044
          #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" => 1652
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1047
              #items: array:1 [
                0 => App\Models\Term {#1045
                  #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: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
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                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_class" => Illuminate\Database\Eloquent\Collection {#1048
              #items: array:1 [
                0 => App\Models\Term {#1049
                  #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 {#1050
              #items: array:1 [
                0 => App\Models\Term {#1051
                  #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 {#1052
              #items: array:4 [
                0 => App\Models\Term {#1053
                  #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: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => 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]
                }
                2 => 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]
                }
                3 => 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: []
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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_author_foreign" => Illuminate\Database\Eloquent\Collection {#1057
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1058
              #items: array:1 [
                0 => App\Models\Term {#1059
                  #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: []
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                  #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 {#1060
              #items: array:1 [
                0 => App\Models\Term {#1061
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
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                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                  +timestamps: true
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                  #hidden: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1062
              #items: array:1 [
                0 => App\Models\Term {#1063
                  #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: []
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_series" => Illuminate\Database\Eloquent\Collection {#1064
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1065
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1066
              #items: array:1 [
                0 => App\Models\Term {#1067
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1068
              #items: array:1 [
                0 => App\Models\Term {#1069
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  #attributes: array:10 [ …10]
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => "2"
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1070
              #items: array:1 [
                0 => App\Models\Term {#1071
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #with: []
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1072
              #items: array:1 [
                0 => App\Models\Term {#1056}
              ]
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2024"
            "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" => "919"
            "field_priority" => null
            "field_default_folder" => "/fizika_09/belaga-u/"
            "field_isbn" => "978-5-09-121759-9"
            "field_cover" => array:2 [
              0 => "/media/fizika_09/belaga-u/covers/cover1.webp"
              1 => "/media/fizika_09/belaga-u/covers/cover2.webp"
            ]
            "field_cover_alts" => array:2 [
              0 => ""
              1 => ""
            ]
            "field_covers" => array:2 [
              0 => array:4 [
                "path" => "/media/fizika_09/belaga-u/covers/cover1.webp"
                "alt" => ""
                "width" => "2322"
                "height" => "3039"
              ]
              1 => array:4 [
                "path" => "/media/fizika_09/belaga-u/covers/cover2.webp"
                "alt" => ""
                "width" => "2308"
                "height" => "3035"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1073
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1074
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1075
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/9-klass/fizika/belaga-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1076
              #items: array:1 [
                0 => App\Models\Term {#1077
                  #connection: "mysql"
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                }
              ]
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            }
            "field_metatags_title" => null
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            "breadcrumbs" => array:3 [
              "class" => 380
              "subject" => 556
              "class_subject" => 493
            ]
          ]
          #original: array:50 [
            "id" => 1652
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1047}
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              ]
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            "edition" => Illuminate\Database\Eloquent\Collection {#1098}
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                0 => App\Models\Branch {#1207
                  #connection: "mysql"
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                  #attributes: array:23 [ …23]
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            "content" => Illuminate\Database\Eloquent\Collection {#6128
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              #items: array:1 [
                0 => App\Models\Task {#6131
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    "previous" => Illuminate\Database\Eloquent\Collection {#6079
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            "content" => Illuminate\Database\Eloquent\Collection {#6092
              #items: array:1 [
                0 => App\Models\Element {#6091
                  #connection: "mysql"
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                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                }
              ]
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            "next" => array:2 [
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            "tasks" => Illuminate\Database\Eloquent\Collection {#6085
              #items: array:2 [
                0 => App\Models\Task {#6097
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                   …23
                }
                1 => App\Models\Task {#6104 …30}
              ]
              #escapeWhenCastingToString: false
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            "tasks" => Illuminate\Database\Eloquent\Collection {#6085}
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      ]
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    "tasks" => Illuminate\Database\Eloquent\Collection {#1079
      #items: array:11 [
        0 => App\Models\Task {#1109
          #connection: "mysql"
          #table: "tasks"
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          #keyType: "int"
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            "updated_at" => null
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            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1113
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                0 => App\Models\Term {#1110 …30}
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1111
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                0 => App\Models\Branch {#1008}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1197
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                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1152
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                0 => App\Models\Element {#1185 …30}
                1 => App\Models\Element {#1183 …30}
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            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1187
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                0 => App\Models\Book {#1044}
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              #escapeWhenCastingToString: false
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            "page" => array:2 [
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              "type" => "book_page"
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            "field_display_title" => "3"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1113}
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1111}
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            "next" => array:2 [
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            ]
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              "type" => "task"
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            "book" => Illuminate\Database\Eloquent\Collection {#1187}
            "page" => array:2 [
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              "type" => "book_page"
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            0 => "*"
          ]
        }
        1 => App\Models\Task {#1189
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          +preventsLazyLoading: false
          #perPage: 15
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
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            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1205
              #items: array:1 [
                0 => App\Models\Term {#1110 …30}
              ]
              #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 {#1186
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1193
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1190
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1194
              #items: array:2 [
                0 => App\Models\Element {#1168 …30}
                1 => App\Models\Element {#1166 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1506544"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506542"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1172
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
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            "id" => 1506543
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1205}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1186}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1193}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1190}
            "content" => Illuminate\Database\Eloquent\Collection {#1194}
            "next" => array:2 [
              "refs" => "1506544"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506542"
              "type" => "task"
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            "book" => Illuminate\Database\Eloquent\Collection {#1172}
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
          ]
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
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          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Task {#1178
          #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" => 1506544
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-5"
            "field_display_title" => "5"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1156
              #items: array:1 [
                0 => App\Models\Term {#1110 …30}
              ]
              #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 {#1170
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1174
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1176
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1173
              #items: array:2 [
                0 => App\Models\Element {#1192 …30}
                1 => App\Models\Element {#1153 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1506545"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506543"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1157
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1506544
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-5"
            "field_display_title" => "5"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1156}
            "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 {#1170}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1174}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1176}
            "content" => Illuminate\Database\Eloquent\Collection {#1173}
            "next" => array:2 [
              "refs" => "1506545"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506543"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1157}
            "page" => array:2 [
              "refs" => "1507255"
              "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 => "*"
          ]
        }
        3 => App\Models\Task {#1164
          #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" => 1506545
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-6"
            "field_display_title" => "6"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1171
              #items: array:1 [
                0 => App\Models\Term {#1110 …30}
              ]
              #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 {#1191
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1159
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1161
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1162
              #items: array:2 [
                0 => App\Models\Element {#1146 …30}
                1 => App\Models\Element {#1129 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1506546"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506544"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1150
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
          ]
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            "id" => 1506545
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-6"
            "field_display_title" => "6"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1171}
            "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 {#1191}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1159}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1161}
            "content" => Illuminate\Database\Eloquent\Collection {#1162}
            "next" => array:2 [
              "refs" => "1506546"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506544"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1150}
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
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          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        4 => App\Models\Task {#1114
          #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" => 1506546
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-7"
            "field_display_title" => "7"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1160
              #items: array:1 [
                0 => App\Models\Term {#1110 …30}
              ]
              #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 {#1147
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1118
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1151
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1117
              #items: array:2 [
                0 => App\Models\Element {#1136 …30}
                1 => App\Models\Element {#1134 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1506547"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506545"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1138
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1506546
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-7"
            "field_display_title" => "7"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1160}
            "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 {#1147}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1118}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1151}
            "content" => Illuminate\Database\Eloquent\Collection {#1117}
            "next" => array:2 [
              "refs" => "1506547"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506545"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1138}
            "page" => array:2 [
              "refs" => "1507255"
              "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 => "*"
          ]
        }
        5 => App\Models\Task {#1144
          #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" => 1506547
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-8"
            "field_display_title" => "8"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1149
              #items: array:1 [
                0 => App\Models\Term {#1110 …30}
              ]
              #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 {#1135
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1139
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1141
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1142
              #items: array:2 [
                0 => App\Models\Element {#1121 …30}
                1 => App\Models\Element {#1119 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1506548"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506546"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1126
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1506547
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-8"
            "field_display_title" => "8"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1149}
            "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 {#1135}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1139}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1141}
            "content" => Illuminate\Database\Eloquent\Collection {#1142}
            "next" => array:2 [
              "refs" => "1506548"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506546"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1126}
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        6 => App\Models\Task {#1132
          #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" => 1506548
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-9"
            "field_display_title" => "9"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1140
              #items: array:1 [
                0 => App\Models\Term {#1110 …30}
              ]
              #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 {#1124
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1128
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1130
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1125
              #items: array:2 [
                0 => App\Models\Element {#1198 …30}
                1 => App\Models\Element {#1199 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
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              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1506547"
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            "book" => Illuminate\Database\Eloquent\Collection {#1202
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
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            "page" => array:2 [
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            "field_display_title" => "9"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1140}
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1124}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1128}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1130}
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            "book" => Illuminate\Database\Eloquent\Collection {#1202}
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          #visible: []
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            0 => "*"
          ]
        }
        7 => App\Models\Task {#1116
          #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" => 1506549
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-10"
            "field_display_title" => "10"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1127
              #items: array:1 [
                0 => App\Models\Term {#1110 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1200
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1195
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1115
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1196
              #items: array:2 [
                0 => App\Models\Element {#1283 …30}
                1 => App\Models\Element {#1285 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1506550"
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            "previous" => array:2 [
              "refs" => "1506548"
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            "book" => Illuminate\Database\Eloquent\Collection {#1280
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
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              "type" => "book_page"
            ]
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            "id" => 1506549
            "created_at" => "2026-04-10 00:54:11"
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            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-10"
            "field_display_title" => "10"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1127}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1200}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1195}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1115}
            "content" => Illuminate\Database\Eloquent\Collection {#1196}
            "next" => array:2 [
              "refs" => "1506550"
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            "previous" => array:2 [
              "refs" => "1506548"
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            "book" => Illuminate\Database\Eloquent\Collection {#1280}
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
          ]
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          #visible: []
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            0 => "*"
          ]
        }
        8 => App\Models\Task {#1268
          #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 [
            "id" => 1506550
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_page_start" => "243"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-11"
            "field_display_title" => "11"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1203
              #items: array:1 [
                0 => App\Models\Term {#1110 …30}
              ]
              #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 {#1282
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1273
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1272
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1270
              #items: array:2 [
                0 => App\Models\Element {#1295 …30}
                1 => App\Models\Element {#1297 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
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            "previous" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1292
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            "field_display_title" => "11"
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1272}
            "content" => Illuminate\Database\Eloquent\Collection {#1270}
            "next" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1292}
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        9 => App\Models\Task {#1287
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1271
              #items: array:1 [
                0 => App\Models\Term {#1110 …30}
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1290
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1288
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1289
              #items: array:2 [
                0 => App\Models\Element {#1307 …30}
                1 => App\Models\Element {#1309 …30}
              ]
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            "next" => array:2 [
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              "refs" => "1506550"
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            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1304
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1507255"
              "type" => "book_page"
            ]
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            "id" => 1506551
            "created_at" => "2026-04-10 00:54:11"
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            "field_page_end" => null
            "field_url" => "/9-klass/fizika/belaga-uchebnik/60zadach-12"
            "field_display_title" => "12"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1271}
            "field_metatags_title" => null
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            "field_h1" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1294}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1290}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1288}
            "content" => Illuminate\Database\Eloquent\Collection {#1289}
            "next" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1304}
            "page" => array:2 [
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        10 => App\Models\Task {#1299
          #connection: "mysql"
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          #primaryKey: "id"
          #keyType: "int"
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            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1291
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                0 => App\Models\Term {#1110 …30}
              ]
              #escapeWhenCastingToString: false
            }
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1306
              #items: []
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            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1302
              #items: array:1 [
                0 => App\Models\Branch {#1207}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1300
              #items: array:4 [
                0 => App\Models\Branch {#1207}
                1 => App\Models\Branch {#1212 …30}
                2 => App\Models\Branch {#1217 …30}
                3 => App\Models\Branch {#1264 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1301
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                1 => App\Models\Element {#1321 …30}
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              "refs" => "1506551"
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            "book" => Illuminate\Database\Eloquent\Collection {#1316
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                0 => App\Models\Book {#1044}
              ]
              #escapeWhenCastingToString: false
            }
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            ]
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            "field_display_title" => "13"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1291}
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            "field_h1" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1306}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1302}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1300}
            "content" => Illuminate\Database\Eloquent\Collection {#1301}
            "next" => array:2 [
              "refs" => "1506553"
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              "refs" => "1506551"
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            "book" => Illuminate\Database\Eloquent\Collection {#1316}
            "page" => array:2 [
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    "id" => 1507255
    "created_at" => "2026-04-10 00:54:11"
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    "field_page_start" => "243"
    "field_url" => "/9-klass/fizika/belaga-uchebnik/page-1-243"
    "field_display_title" => "243"
    "field_folder" => "1"
    "field_image_name" => "243"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1046}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1080}
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    "field_metatags_description" => null
    "field_h1" => null
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    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1078}
    "content" => Illuminate\Database\Eloquent\Collection {#1089}
    "next" => array:2 [
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    ]
    "previous" => array:2 [
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    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1079}
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  +timestamps: true
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  #hidden: []
  #visible: []
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  #guarded: array:1 [
    0 => "*"
  ]
}
Физика, 9 класс Учебник, авторы: Белага Виктория Владимировна, Воронцова Наталия Игоревна, Ломаченков Иван Алексеевич, Панебратцев Юрий Анатольевич, издательство Просвещение, Москва, 2024, голубого цвета, Часть 1, страница 243
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