Страница 67, часть 2 - 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: 2

Цвет обложки: голубой

ISBN: 978-5-09-121759-9

Часть 2. Cтраница 67

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" => 1507336
    "created_at" => "2026-04-10 00:54:11"
    "updated_at" => null
    "field_page_start" => "67"
    "field_url" => "/9-klass/fizika/belaga-uchebnik/page-2-67"
    "field_display_title" => "67"
    "field_folder" => "2"
    "field_image_name" => "67"
    "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" => 1505926
            "created_at" => "2026-04-10 00:54:11"
            "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 [
                    "id" => 31
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Часть"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Часть"
                      "field_creative_case" => "Частью"
                      "field_dative_case" => "Части"
                      "field_genitive_case" => "Части"
                      "field_nominative_case" => "Часть"
                      "field_prepositional_case" => "Части"
                    ]
                    "field_page_check_not_needed" => "1"
                    "field_short_name" => "ч."
                  ]
                  #original: array:7 [
                    "id" => 31
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Часть"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Часть"
                      "field_creative_case" => "Частью"
                      "field_dative_case" => "Части"
                      "field_genitive_case" => "Части"
                      "field_nominative_case" => "Часть"
                      "field_prepositional_case" => "Части"
                    ]
                    "field_page_check_not_needed" => "1"
                    "field_short_name" => "ч."
                  ]
                  #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_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 [
                    "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 {#1011
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1013
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1015
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1017
                      #items: array:4 [ …4]
                      #escapeWhenCastingToString: false
                    }
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1022
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1023
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1025
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1027
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1029
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1030
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1031
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1033
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_publication_number" => "2"
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1035
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1037
                      #items: array:1 [ …1]
                      #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 [ …4]
                      1 => array:4 [ …4]
                    ]
                    "field_popular_book" => "0"
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1038
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1039
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1040
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_url" => "/9-klass/fizika/belaga-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1041
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "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
                    "field_tree_default_status" => "tasks"
                    "field_pages_status" => null
                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1011}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1013}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1015}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1017}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1022}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1023}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1025}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1027}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1029}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1030}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1031}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1033}
                    "field_publication_number" => "2"
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1035}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1037}
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => null
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                    "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
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                    "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 [ …4]
                      1 => array:4 [ …4]
                    ]
                    "field_popular_book" => "0"
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1038}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1039}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1040}
                    "field_url" => "/9-klass/fizika/belaga-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1041}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
                      "class" => 380
                      "subject" => 556
                      "class_subject" => 493
                    ]
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1043
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:23 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1009}
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          ]
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    "field_weight" => "0"
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      #items: array:1 [
        0 => App\Models\Book {#1044
          #connection: "mysql"
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          #primaryKey: "id"
          #keyType: "int"
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          #attributes: array:50 [
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1047
              #items: array:1 [
                0 => App\Models\Term {#1045
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #escapeWhenCastingToString: false
                  #attributes: array:10 [
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                    "created_at" => "2026-04-10 00:54:11"
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              #items: array:1 [
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                  #connection: "mysql"
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                    "created_at" => "2026-04-10 00:54:11"
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                    "created_at" => "2026-04-10 00:54:11"
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                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                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 [
                    "id" => 4049
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Воронцова"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Наталия"
                    "field_patronymic" => "Игоревна"
                    "field_surname_rp" => null
                  ]
                  #original: array:12 [
                    "id" => 4049
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Воронцова"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Наталия"
                    "field_patronymic" => "Игоревна"
                    "field_surname_rp" => null
                  ]
                  #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\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 [
                    "id" => 5014
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Ломаченков"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Иван"
                    "field_patronymic" => "Алексеевич"
                    "field_surname_rp" => null
                  ]
                  #original: array:12 [
                    "id" => 5014
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Ломаченков"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Иван"
                    "field_patronymic" => "Алексеевич"
                    "field_surname_rp" => null
                  ]
                  #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\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 [
                    "id" => 5412
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Панебратцев"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Юрий"
                    "field_patronymic" => "Анатольевич"
                    "field_surname_rp" => "Панебратцева"
                  ]
                  #original: array:12 [
                    "id" => 5412
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Панебратцев"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Юрий"
                    "field_patronymic" => "Анатольевич"
                    "field_surname_rp" => "Панебратцева"
                  ]
                  #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_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 [
                    "id" => 6671
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Учебник"
                    "field_book_type_foreign" => null
                    "field_cases" => array:6 [
                      "field_accusative_case" => "учебник"
                      "field_creative_case" => "учебником"
                      "field_dative_case" => "учебнику"
                      "field_genitive_case" => "учебника"
                      "field_nominative_case" => "учебник"
                      "field_prepositional_case" => "учебнике"
                    ]
                    "field_plural_form" => null
                    "field_short_name" => null
                    "field_short_name_foreign" => null
                    "field_translit" => "uchebnik"
                  ]
                  #original: array:10 [
                    "id" => 6671
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Учебник"
                    "field_book_type_foreign" => null
                    "field_cases" => array:6 [
                      "field_accusative_case" => "учебник"
                      "field_creative_case" => "учебником"
                      "field_dative_case" => "учебнику"
                      "field_genitive_case" => "учебника"
                      "field_nominative_case" => "учебник"
                      "field_prepositional_case" => "учебнике"
                    ]
                    "field_plural_form" => null
                    "field_short_name" => null
                    "field_short_name_foreign" => null
                    "field_translit" => "uchebnik"
                  ]
                  #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_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
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 9
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Россия"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "rossiya"
                  ]
                  #original: array:6 [
                    "id" => 9
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Россия"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "rossiya"
                  ]
                  #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_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
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 15
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Москва"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "moskva"
                  ]
                  #original: array:6 [
                    "id" => 15
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "Москва"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "moskva"
                  ]
                  #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_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"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 39
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "углублённый"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "углубленный"
                      "field_creative_case" => "углубленным"
                      "field_dative_case" => "углубленному"
                      "field_genitive_case" => "углубленного"
                      "field_nominative_case" => "углубленный"
                      "field_prepositional_case" => "углубленном"
                    ]
                    "field_translit" => "uglublennyy"
                  ]
                  #original: array:6 [
                    "id" => 39
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "углублённый"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "углубленный"
                      "field_creative_case" => "углубленным"
                      "field_dative_case" => "углубленному"
                      "field_genitive_case" => "углубленного"
                      "field_nominative_case" => "углубленный"
                      "field_prepositional_case" => "углубленном"
                    ]
                    "field_translit" => "uglublennyy"
                  ]
                  #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_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: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:10 [
                    "id" => 25
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "ФГОС (новый)"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_color" => "красный"
                    "field_end_year" => "2027"
                    "field_start_year" => "2023"
                    "field_translit" => "fgos"
                    "field_type" => "новый"
                  ]
                  #original: array:10 [
                    "id" => 25
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "ФГОС (новый)"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_color" => "красный"
                    "field_end_year" => "2027"
                    "field_start_year" => "2023"
                    "field_translit" => "fgos"
                    "field_type" => "новый"
                  ]
                  #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_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"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 33
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "стереотипное"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "stereotipnoe"
                  ]
                  #original: array:6 [
                    "id" => 33
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "стереотипное"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "stereotipnoe"
                  ]
                  #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_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"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 52
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "голубой"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "голубой"
                      "field_creative_case" => "голубым"
                      "field_dative_case" => "голубому"
                      "field_genitive_case" => "голубого"
                      "field_nominative_case" => "голубой"
                      "field_prepositional_case" => "голубом"
                    ]
                    "field_translit" => "goluboy"
                  ]
                  #original: array:6 [
                    "id" => 52
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "name" => "голубой"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "голубой"
                      "field_creative_case" => "голубым"
                      "field_dative_case" => "голубому"
                      "field_genitive_case" => "голубого"
                      "field_nominative_case" => "голубой"
                      "field_prepositional_case" => "голубом"
                    ]
                    "field_translit" => "goluboy"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
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                    0 => "*"
                  ]
                }
              ]
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            ]
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            "id" => 1652
            "created_at" => "2026-04-10 00:54:11"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1047}
            "field_class" => Illuminate\Database\Eloquent\Collection {#1048}
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            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1057}
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            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1068}
            "field_publication_number" => "2"
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            "field_publication_year" => "2024"
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            "field_part" => "1, 2"
            "field_part_writing" => "Часть"
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебное издание"
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            "field_tasks_count" => "919"
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            "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"
            ]
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              1 => ""
            ]
            "field_covers" => array:2 [
              0 => array:4 [
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              ]
              1 => array:4 [
                "path" => "/media/fizika_09/belaga-u/covers/cover2.webp"
                "alt" => ""
                "width" => "2308"
                "height" => "3035"
              ]
            ]
            "field_popular_book" => "0"
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            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1074}
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            "field_url" => "/9-klass/fizika/belaga-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1076}
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        0 => App\Models\Element {#1088
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            "edition" => Illuminate\Database\Eloquent\Collection {#1098
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                0 => App\Models\Edition {#1090
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #attributes: array:21 [
                    "id" => 6617
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1092
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                      #escapeWhenCastingToString: false
                    }
                    "field_content_type" => "free"
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                    "field_solution_author" => "Автор"
                    "field_moderator" => "stas"
                    "field_edition_type" => "statement"
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                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1093
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                    }
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1094
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                    }
                    "field_process_formula" => "katex"
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                      #escapeWhenCastingToString: false
                    }
                    "field_content_source" => null
                  ]
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                    "id" => 6617
                    "created_at" => "2026-04-10 00:54:11"
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                    "field_content_type" => "free"
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                    "field_content_source" => null
                  ]
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                    0 => "*"
                  ]
                }
              ]
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            "book_page" => array:2 [
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            "img" => array:1 [
              0 => array:5 [
                "name" => "67-1.jpg"
                "alt" => null
                "width" => "2389"
                "height" => 3131
                "path" => "/media/fizika_09/belaga-u/0-2/67-1.webp?ts=1762278249"
              ]
            ]
          ]
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            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1098}
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              "refs" => "1507336"
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            ]
            "img" => array:1 [
              0 => array:5 [
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                "width" => "2389"
                "height" => 3131
                "path" => "/media/fizika_09/belaga-u/0-2/67-1.webp?ts=1762278249"
              ]
            ]
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            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "next" => Illuminate\Database\Eloquent\Collection {#5876
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        0 => App\Models\BookPage {#5877
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
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          #attributes: array:21 [
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            "created_at" => "2026-04-10 00:54:11"
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            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5886
              #items: array:1 [
                0 => App\Models\Branch {#5988
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                  #attributes: array:23 [
                    "id" => 1505926
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
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                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#5992
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                      #escapeWhenCastingToString: false
                    }
                    "field_page_start" => "6"
                    "field_branch_display" => "0"
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                    "field_branch_cover" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#5991
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                      #escapeWhenCastingToString: false
                    }
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#5990
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                  ]
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                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#5992}
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                    "field_branch_cover" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#5991}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#5990}
                  ]
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                    0 => "*"
                  ]
                }
              ]
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            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5888
              #items: array:1 [
                0 => App\Models\Book {#1044}
              ]
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            }
            "field_metatags_title" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#5881
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#5943
              #items: array:1 [
                0 => App\Models\Element {#5941
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
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                  #perPage: 15
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                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 1804312
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#5895
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "book_page" => array:2 [
                      "refs" => "1507337"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [ …5]
                    ]
                  ]
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                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#5895}
                    "book_page" => array:2 [
                      "refs" => "1507337"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [ …5]
                    ]
                  ]
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                  #attributeCastCache: []
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                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
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            ]
            "previous" => array:2 [
              "refs" => "1507336"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5880
              #items: array:3 [
                0 => App\Models\Task {#5931
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
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                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1506715
                    "created_at" => "2026-04-10 00:54:11"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5929
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_metatags_title" => null
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                    "field_match" => null
                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#5928
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5927
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#6214
                      #items: array:4 [ …4]
                      #escapeWhenCastingToString: false
                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#6131
                      #items: array:2 [ …2]
                      #escapeWhenCastingToString: false
                    }
                    "next" => array:2 [
                      "refs" => "1506716"
                      "type" => "task"
                    ]
                    "previous" => array:2 [
                      "refs" => "1506714"
                      "type" => "task"
                    ]
                    "book" => Illuminate\Database\Eloquent\Collection {#6210
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "page" => array:2 [
                      "refs" => "1507337"
                      "type" => "book_page"
                    ]
                  ]
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                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "field_page_start" => "68"
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                    "field_url" => "/9-klass/fizika/belaga-uchebnik/79vopr-1"
                    "field_display_title" => "1"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5929}
                    "field_metatags_title" => null
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                    "breadcrumbs" => []
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#6214}
                    "content" => Illuminate\Database\Eloquent\Collection {#6131}
                    "next" => array:2 [
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                    ]
                    "previous" => array:2 [
                      "refs" => "1506714"
                      "type" => "task"
                    ]
                    "book" => Illuminate\Database\Eloquent\Collection {#6210}
                    "page" => array:2 [
                      "refs" => "1507337"
                      "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 => "*"
                  ]
                }
                1 => App\Models\Task {#6168
                  #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" => 1506716
                    "created_at" => "2026-04-10 00:54:11"
                    "updated_at" => null
                    "field_page_start" => "68"
                    "field_page_end" => null
                    "field_url" => "/9-klass/fizika/belaga-uchebnik/79vopr-2"
                    "field_display_title" => "2"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#6222
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "field_metatags_title" => null
                    "field_metatags_description" => null
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                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#6204
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6207
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#6169
                      #items: array:4 [ …4]
                      #escapeWhenCastingToString: false
                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#6206
                      #items: array:2 [ …2]
                      #escapeWhenCastingToString: false
                    }
                    "next" => array:2 [
                      "refs" => "1506717"
                      "type" => "task"
                    ]
                    "previous" => array:2 [
                      "refs" => "1506715"
                      "type" => "task"
                    ]
                    "book" => Illuminate\Database\Eloquent\Collection {#6197
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "page" => array:2 [
                      "refs" => "1507337"
                      "type" => "book_page"
                    ]
                  ]
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                }
                2 => App\Models\Task {#6200
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                1 => App\Models\Task {#5970
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                    "book" => Illuminate\Database\Eloquent\Collection {#5953
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                       …1
                    ]
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                2 => App\Models\Task {#5959
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            "content" => Illuminate\Database\Eloquent\Collection {#5884}
            "next" => array:2 [
              "refs" => "1507336"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1507334"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5875}
          ]
          #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: []
      #escapeWhenCastingToString: false
    }
  ]
  #original: array:21 [
    "id" => 1507336
    "created_at" => "2026-04-10 00:54:11"
    "updated_at" => null
    "field_page_start" => "67"
    "field_url" => "/9-klass/fizika/belaga-uchebnik/page-2-67"
    "field_display_title" => "67"
    "field_folder" => "2"
    "field_image_name" => "67"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1046}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1080}
    "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 {#1078}
    "content" => Illuminate\Database\Eloquent\Collection {#1089}
    "next" => array:2 [
      "refs" => "1507337"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1507335"
      "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, 9 класс Учебник, авторы: Белага Виктория Владимировна, Воронцова Наталия Игоревна, Ломаченков Иван Алексеевич, Панебратцев Юрий Анатольевич, издательство Просвещение, Москва, 2024, голубого цвета, страница 67
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