Страница 21 - гдз по физике 8 класс учебник Кронгарт, Насохова

Физика, 8 класс Учебник, авторы: Кронгарт Борис Аркадьевич, Насохова Шолпан Бабиевна, издательство Мектеп, Алматы, 2018, обложка

Авторы: Кронгарт Б. А., Насохова Ш. Б.

Тип: Учебник

Издательство: Мектеп

Год издания: 2018 - 2026

Цвет обложки: синий

ISBN: 978-601-07-0971-3

Cтраница 21

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" => 2103816
    "created_at" => "2026-04-08 17:28:58"
    "updated_at" => null
    "field_page_start" => "21"
    "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/page-21"
    "field_display_title" => "21"
    "field_folder" => "1"
    "field_image_name" => "21"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008
      #items: []
      #escapeWhenCastingToString: false
    }
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1016
      #items: array:1 [
        0 => App\Models\Book {#1015
          #connection: "mysql"
          #table: "books"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: false
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
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          #escapeWhenCastingToString: false
          #attributes: array:50 [
            "id" => 9915
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1020
              #items: array:1 [
                0 => App\Models\Term {#1017
                  #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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                  #dateFormat: null
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_class" => Illuminate\Database\Eloquent\Collection {#1022
              #items: array:1 [
                0 => App\Models\Term {#1019
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1024
              #items: array:1 [
                0 => App\Models\Term {#1021
                  #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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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author" => Illuminate\Database\Eloquent\Collection {#1018
              #items: array:2 [
                0 => App\Models\Term {#1023
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
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                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Term {#1025
                  #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:12 [ …12]
                  #original: array:12 [ …12]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1027
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1030
              #items: array:1 [
                0 => App\Models\Term {#1026
                  #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:10 [ …10]
                  #original: array:10 [ …10]
                  #changes: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1032
              #items: array:1 [
                0 => App\Models\Term {#1029
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1034
              #items: array:1 [
                0 => App\Models\Term {#1031
                  #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]
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_series" => Illuminate\Database\Eloquent\Collection {#1033
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1028
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1035
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1036
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1037
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1038
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2018"
            "field_publication_year_until" => null
            "field_part" => ""
            "field_part_writing" => ""
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебник для 8 класса общеобразовательных школ"
            "field_allowed" => null
            "field_reserve_field" => null
            "field_link_to_source" => null
            "field_tasks_count" => "654"
            "field_priority" => null
            "field_default_folder" => "/fizika_08/krongart-u/"
            "field_isbn" => "978-601-07-0971-3"
            "field_cover" => array:1 [
              0 => "/media/fizika_08/krongart-u/covers/cover1.webp"
            ]
            "field_cover_alts" => array:1 [
              0 => "обложка"
            ]
            "field_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/fizika_08/krongart-u/covers/cover1.webp"
                "alt" => "обложка"
                "width" => "467"
                "height" => "600"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1039
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1040
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1041
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1045
              #items: array:1 [
                0 => App\Models\Term {#1042
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
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                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
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            "field_description_bottom" => null
            "breadcrumbs" => array:3 [
              "class" => 379
              "subject" => 556
              "class_subject" => 492
            ]
          ]
          #original: array:50 [
            "id" => 9915
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1020}
            "field_class" => Illuminate\Database\Eloquent\Collection {#1022}
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1024}
            "field_author" => Illuminate\Database\Eloquent\Collection {#1018}
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1027}
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1030}
            "field_country" => Illuminate\Database\Eloquent\Collection {#1032}
            "field_city" => Illuminate\Database\Eloquent\Collection {#1034}
            "field_series" => Illuminate\Database\Eloquent\Collection {#1033}
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1028}
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1035}
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1036}
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1037}
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1038}
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2018"
            "field_publication_year_until" => null
            "field_part" => ""
            "field_part_writing" => ""
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебник для 8 класса общеобразовательных школ"
            "field_allowed" => null
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            "field_link_to_source" => null
            "field_tasks_count" => "654"
            "field_priority" => null
            "field_default_folder" => "/fizika_08/krongart-u/"
            "field_isbn" => "978-601-07-0971-3"
            "field_cover" => array:1 [
              0 => "/media/fizika_08/krongart-u/covers/cover1.webp"
            ]
            "field_cover_alts" => array:1 [
              0 => "обложка"
            ]
            "field_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/fizika_08/krongart-u/covers/cover1.webp"
                "alt" => "обложка"
                "width" => "467"
                "height" => "600"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1039}
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1040}
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1041}
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1045}
            "field_metatags_title" => null
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            "field_h1" => null
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            "breadcrumbs" => array:3 [
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              "class_subject" => 492
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          ]
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            0 => "*"
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    "field_metatags_title" => null
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    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1007
      #items: []
      #escapeWhenCastingToString: false
    }
    "content" => Illuminate\Database\Eloquent\Collection {#1047
      #items: array:1 [
        0 => App\Models\Element {#1046
          #connection: "mysql"
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          #attributes: array:6 [
            "id" => 1995726
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1057
              #items: array:1 [
                0 => App\Models\Edition {#1056
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  #attributes: array:21 [ …21]
                  #original: array:21 [ …21]
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              ]
              #escapeWhenCastingToString: false
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            "book_page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "21-1.jpg"
                "alt" => null
                "width" => "580"
                "height" => 897
                "path" => "/media/fizika_08/krongart-u/0-1/21-1.webp"
              ]
            ]
          ]
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            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
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              "refs" => "2103816"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "21-1.jpg"
                "alt" => null
                "width" => "580"
                "height" => 897
                "path" => "/media/fizika_08/krongart-u/0-1/21-1.webp"
              ]
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            0 => "*"
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      #escapeWhenCastingToString: false
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    "next" => Illuminate\Database\Eloquent\Collection {#6070
      #items: array:1 [
        0 => App\Models\BookPage {#6071
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          +exists: true
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          #attributes: array:21 [
            "id" => 2103817
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "22"
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/page-22"
            "field_display_title" => "22"
            "field_folder" => "1"
            "field_image_name" => "22"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#6080
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#6082
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "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 {#6075
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#6129
              #items: array:1 [
                0 => App\Models\Element {#6135
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                   …7
                }
              ]
              #escapeWhenCastingToString: false
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1116
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                1 => App\Models\Branch {#1130 …30}
                2 => App\Models\Branch {#1135 …30}
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            "content" => Illuminate\Database\Eloquent\Collection {#1109
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            "book" => Illuminate\Database\Eloquent\Collection {#1076
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        1 => App\Models\Task {#1114
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                0 => App\Models\Branch {#1126 …30}
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1184
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                1 => App\Models\Branch {#1198 …30}
                2 => App\Models\Branch {#1202 …30}
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            "content" => Illuminate\Database\Eloquent\Collection {#1174
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            "book" => Illuminate\Database\Eloquent\Collection {#1138
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        2 => App\Models\Task {#1177
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                0 => App\Models\Branch {#1194 …30}
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            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1141
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                1 => App\Models\Branch {#1198 …30}
                2 => App\Models\Branch {#1202 …30}
              ]
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            "content" => Illuminate\Database\Eloquent\Collection {#1165
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            "book" => Illuminate\Database\Eloquent\Collection {#1172
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            "field_display_title" => "2"
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        3 => App\Models\Task {#1171
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            "field_display_title" => "3"
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                0 => App\Models\Branch {#1194 …30}
              ]
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            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1167
              #items: array:3 [
                0 => App\Models\Branch {#1194 …30}
                1 => App\Models\Branch {#1198 …30}
                2 => App\Models\Branch {#1202 …30}
              ]
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            "content" => Illuminate\Database\Eloquent\Collection {#1155
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            "book" => Illuminate\Database\Eloquent\Collection {#1163
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            "book" => Illuminate\Database\Eloquent\Collection {#1163}
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          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        4 => App\Models\Task {#1160
          #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" => 2103192
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1169
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1156
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1161
              #items: array:1 [
                0 => App\Models\Branch {#1194 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1158
              #items: array:3 [
                0 => App\Models\Branch {#1194 …30}
                1 => App\Models\Branch {#1198 …30}
                2 => App\Models\Branch {#1202 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1078
              #items: array:1 [
                0 => App\Models\Element {#1140 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103193"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103191"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1153
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103192
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1169}
            "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 {#1156}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1161}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1158}
            "content" => Illuminate\Database\Eloquent\Collection {#1078}
            "next" => array:2 [
              "refs" => "2103193"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103191"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1153}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        5 => App\Models\Task {#1150
          #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" => 2103193
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-5"
            "field_display_title" => "5"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1159
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1180
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1151
              #items: array:1 [
                0 => App\Models\Branch {#1194 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1143
              #items: array:3 [
                0 => App\Models\Branch {#1194 …30}
                1 => App\Models\Branch {#1198 …30}
                2 => App\Models\Branch {#1202 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1115
              #items: array:1 [
                0 => App\Models\Element {#1122 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103194"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103192"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1105
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103193
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-5"
            "field_display_title" => "5"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1159}
            "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 {#1180}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1151}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1143}
            "content" => Illuminate\Database\Eloquent\Collection {#1115}
            "next" => array:2 [
              "refs" => "2103194"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103192"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1105}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        6 => App\Models\Task {#1104
          #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" => 2103194
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-6"
            "field_display_title" => "6"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1179
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1118
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1121
              #items: array:1 [
                0 => App\Models\Branch {#1194 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1120
              #items: array:3 [
                0 => App\Models\Branch {#1194 …30}
                1 => App\Models\Branch {#1198 …30}
                2 => App\Models\Branch {#1202 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1091
              #items: array:1 [
                0 => App\Models\Element {#1094 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103195"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103193"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1077
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103194
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-6"
            "field_display_title" => "6"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1179}
            "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 {#1118}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1121}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1120}
            "content" => Illuminate\Database\Eloquent\Collection {#1091}
            "next" => array:2 [
              "refs" => "2103195"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103193"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1077}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        7 => App\Models\Task {#1075
          #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" => 2103195
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-7"
            "field_display_title" => "7"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1119
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1081
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1079
              #items: array:1 [
                0 => App\Models\Branch {#1194 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1092
              #items: array:3 [
                0 => App\Models\Branch {#1194 …30}
                1 => App\Models\Branch {#1198 …30}
                2 => App\Models\Branch {#1202 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1101
              #items: array:1 [
                0 => App\Models\Element {#1103 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103196"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103194"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1098
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103195
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-7"
            "field_display_title" => "7"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1119}
            "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 {#1081}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1079}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1092}
            "content" => Illuminate\Database\Eloquent\Collection {#1101}
            "next" => array:2 [
              "refs" => "2103196"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103194"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1098}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        8 => App\Models\Task {#1093
          #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" => 2103196
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-8"
            "field_display_title" => "8"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1090
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1097
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1096
              #items: array:1 [
                0 => App\Models\Branch {#1194 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1102
              #items: array:3 [
                0 => App\Models\Branch {#1194 …30}
                1 => App\Models\Branch {#1198 …30}
                2 => App\Models\Branch {#1202 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1187
              #items: array:1 [
                0 => App\Models\Element {#1189 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103197"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103195"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1107
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103196
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-8"
            "field_display_title" => "8"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1090}
            "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 {#1097}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1096}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1102}
            "content" => Illuminate\Database\Eloquent\Collection {#1187}
            "next" => array:2 [
              "refs" => "2103197"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103195"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1107}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        9 => App\Models\Task {#1185
          #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" => 2103197
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-9"
            "field_display_title" => "9"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1100
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1192
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1183
              #items: array:1 [
                0 => App\Models\Branch {#1194 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1188
              #items: array:3 [
                0 => App\Models\Branch {#1194 …30}
                1 => App\Models\Branch {#1198 …30}
                2 => App\Models\Branch {#1202 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1215
              #items: array:1 [
                0 => App\Models\Element {#1214 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103198"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103196"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1207
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103197
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04vopr-9"
            "field_display_title" => "9"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1100}
            "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 {#1192}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1183}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1188}
            "content" => Illuminate\Database\Eloquent\Collection {#1215}
            "next" => array:2 [
              "refs" => "2103198"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103196"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1207}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        10 => App\Models\Task {#1208
          #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" => 2103198
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1190
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1211
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1209
              #items: array:1 [
                0 => App\Models\Branch {#1194 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1287
              #items: array:3 [
                0 => App\Models\Branch {#1297 …30}
                1 => App\Models\Branch {#1301 …30}
                2 => App\Models\Branch {#1305 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1277
              #items: array:1 [
                0 => App\Models\Element {#1279 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103199"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103197"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1248
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103198
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1190}
            "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 {#1211}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1209}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1287}
            "content" => Illuminate\Database\Eloquent\Collection {#1277}
            "next" => array:2 [
              "refs" => "2103199"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103197"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1248}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        11 => App\Models\Task {#1280
          #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" => 2103199
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1294
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1284
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1281
              #items: array:1 [
                0 => App\Models\Branch {#1297 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1252
              #items: array:3 [
                0 => App\Models\Branch {#1297 …30}
                1 => App\Models\Branch {#1301 …30}
                2 => App\Models\Branch {#1305 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1268
              #items: array:1 [
                0 => App\Models\Element {#1267 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103200"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103198"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1275
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
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            "id" => 2103199
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1294}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1284}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1281}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1252}
            "content" => Illuminate\Database\Eloquent\Collection {#1268}
            "next" => array:2 [
              "refs" => "2103200"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103198"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1275}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
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          #hidden: []
          #visible: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        12 => App\Models\Task {#1274
          #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" => 2103200
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1285
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1271
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1273
              #items: array:1 [
                0 => App\Models\Branch {#1297 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1270
              #items: array:3 [
                0 => App\Models\Branch {#1297 …30}
                1 => App\Models\Branch {#1301 …30}
                2 => App\Models\Branch {#1305 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1258
              #items: array:1 [
                0 => App\Models\Element {#1257 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103201"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103199"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1266
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103200
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1285}
            "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 {#1271}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1273}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1270}
            "content" => Illuminate\Database\Eloquent\Collection {#1258}
            "next" => array:2 [
              "refs" => "2103201"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103199"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1266}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
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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: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        13 => App\Models\Task {#1263
          #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" => 2103201
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1272
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1259
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1264
              #items: array:1 [
                0 => App\Models\Branch {#1297 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1261
              #items: array:3 [
                0 => App\Models\Branch {#1297 …30}
                1 => App\Models\Branch {#1301 …30}
                2 => App\Models\Branch {#1305 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1212
              #items: array:1 [
                0 => App\Models\Element {#1250 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103202"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103200"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1256
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103201
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1272}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1259}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1264}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1261}
            "content" => Illuminate\Database\Eloquent\Collection {#1212}
            "next" => array:2 [
              "refs" => "2103202"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103200"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1256}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        14 => App\Models\Task {#1253
          #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" => 2103202
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-5"
            "field_display_title" => "5"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1262
              #items: array:1 [
                0 => App\Models\Term {#1123 …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 {#1283
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1254
              #items: array:1 [
                0 => App\Models\Branch {#1297 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1251
              #items: array:3 [
                0 => App\Models\Branch {#1297 …30}
                1 => App\Models\Branch {#1301 …30}
                2 => App\Models\Branch {#1305 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1240
              #items: array:1 [
                0 => App\Models\Element {#1241 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2103203"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103201"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1218
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 2103202
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "21"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/04prakt-5"
            "field_display_title" => "5"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1262}
            "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 {#1283}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1254}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1251}
            "content" => Illuminate\Database\Eloquent\Collection {#1240}
            "next" => array:2 [
              "refs" => "2103203"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "2103201"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1218}
            "page" => array:2 [
              "refs" => "2103816"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
  ]
  #original: array:21 [
    "id" => 2103816
    "created_at" => "2026-04-08 17:28:58"
    "updated_at" => null
    "field_page_start" => "21"
    "field_url" => "/8-klass/fizika/mektep-krongart-uchebnik/page-21"
    "field_display_title" => "21"
    "field_folder" => "1"
    "field_image_name" => "21"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1016}
    "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 {#1007}
    "content" => Illuminate\Database\Eloquent\Collection {#1047}
    "next" => array:2 [
      "refs" => "2103817"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "2103815"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1009}
  ]
  #changes: []
  #casts: []
  #classCastCache: []
  #attributeCastCache: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
  #observables: []
  #relations: []
  #touches: []
  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Физика, 8 класс Учебник, авторы: Кронгарт Борис Аркадьевич, Насохова Шолпан Бабиевна, издательство Мектеп, Алматы, 2018, страница 21
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