Страница 63 - гдз по физике 9 класс учебник Кабардин

Физика, 9 класс Учебник, автор: Кабардин Олег Фёдорович, издательство Просвещение, Москва, 2014, радужного цвета

Авторы: Кабардин О. Ф.

Тип: Учебник

Серия: архимед

Издательство: Просвещение

Год издания: 2014 - 2026

Цвет обложки: радужный

ISBN: 978-5-09-034177-6

Cтраница 63

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" => 1717369
    "created_at" => "2026-04-08 17:28:58"
    "updated_at" => null
    "field_page_start" => "63"
    "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-63"
    "field_display_title" => "63"
    "field_folder" => "1"
    "field_image_name" => "63"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008
      #items: []
      #escapeWhenCastingToString: false
    }
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1038
      #items: array:1 [
        0 => App\Models\Book {#1006
          #connection: "mysql"
          #table: "books"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: false
          #with: []
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          #attributes: array:50 [
            "id" => 862
            "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 {#1009
              #items: array:1 [
                0 => App\Models\Term {#1007
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #attributes: array:10 [ …10]
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                }
              ]
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            }
            "field_class" => Illuminate\Database\Eloquent\Collection {#1010
              #items: array:1 [
                0 => App\Models\Term {#1011
                  #connection: "mysql"
                  #table: "terms"
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1012
              #items: array:1 [
                0 => App\Models\Term {#1013
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author" => Illuminate\Database\Eloquent\Collection {#1014
              #items: array:1 [
                0 => App\Models\Term {#1015
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                }
              ]
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            }
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1016
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              #escapeWhenCastingToString: false
            }
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1017
              #items: array:1 [
                0 => App\Models\Term {#1018
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1019
              #items: array:1 [
                0 => App\Models\Term {#1020
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  +preventsLazyLoading: 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: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1021
              #items: array:1 [
                0 => App\Models\Term {#1022
                  #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]
                  #changes: []
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                  #dateFormat: null
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                  #hidden: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_series" => Illuminate\Database\Eloquent\Collection {#1023
              #items: array:1 [
                0 => App\Models\Term {#1024
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  #attributes: array:8 [ …8]
                  #original: array:8 [ …8]
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                  #hidden: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1025
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1026
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1027
              #items: array:1 [
                0 => App\Models\Term {#1028
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1029
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1030
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2014"
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            "field_part" => ""
            "field_part_writing" => ""
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебник для общеобразовательных организаций"
            "field_allowed" => null
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            "field_link_to_source" => null
            "field_tasks_count" => "471"
            "field_priority" => null
            "field_default_folder" => "/fizika_09/kabardin-u/"
            "field_isbn" => "978-5-09-034177-6"
            "field_cover" => array:1 [
              0 => "/media/fizika_09/kabardin-u/covers/cover1.webp"
            ]
            "field_cover_alts" => array:1 [
              0 => ""
            ]
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              0 => array:4 [
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                "alt" => ""
                "width" => "2286"
                "height" => "3086"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1031
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1032
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1033
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/9-klass/fizika/kabardin-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1034
              #items: array:1 [
                0 => App\Models\Term {#1035
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
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                }
              ]
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            }
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              "class_subject" => 493
            ]
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1009}
            "field_class" => Illuminate\Database\Eloquent\Collection {#1010}
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1012}
            "field_author" => Illuminate\Database\Eloquent\Collection {#1014}
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1016}
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1017}
            "field_country" => Illuminate\Database\Eloquent\Collection {#1019}
            "field_city" => Illuminate\Database\Eloquent\Collection {#1021}
            "field_series" => Illuminate\Database\Eloquent\Collection {#1023}
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1025}
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1026}
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1027}
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1029}
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1030}
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            "field_default_folder" => "/fizika_09/kabardin-u/"
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              ]
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            "field_popular_book" => "0"
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            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1033}
            "field_url" => "/9-klass/fizika/kabardin-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1034}
            "field_metatags_title" => null
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          #attributes: array:21 [
            "id" => 1717370
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
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            "field_display_title" => "64"
            "field_folder" => "1"
            "field_image_name" => "64"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#6011
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
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                0 => App\Models\Book {#1006}
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            "field_metatags_title" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#6012
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              #escapeWhenCastingToString: false
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                0 => App\Models\Task {#1068
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                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1080
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                        0 => App\Models\Branch {#1079
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1111
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                        1 => App\Models\Branch {#1125
                          #connection: "mysql"
                          #table: "branches"
                          #primaryKey: "id"
                          #keyType: "int"
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                        }
                        2 => App\Models\Branch {#1130
                          #connection: "mysql"
                          #table: "branches"
                          #primaryKey: "id"
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                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#1104
                      #items: array:1 [
                        0 => App\Models\Element {#1105
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                    "book" => Illuminate\Database\Eloquent\Collection {#1072
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    "tasks" => Illuminate\Database\Eloquent\Collection {#1040
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        1 => App\Models\Task {#1109
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                0 => App\Models\Term {#1118
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                1 => App\Models\Branch {#1125}
                2 => App\Models\Branch {#1130}
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              #escapeWhenCastingToString: false
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            "content" => Illuminate\Database\Eloquent\Collection {#1092
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                0 => App\Models\Element {#1095
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                  #table: "elements"
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                  #attributes: array:7 [ …7]
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            "next" => array:2 [
              "refs" => "1717011"
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            "previous" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1100
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                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
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            "page" => array:2 [
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            "previous" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1100}
            "page" => array:2 [
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              "type" => "book_page"
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            0 => "*"
          ]
        }
        2 => App\Models\Task {#1101
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #perPage: 15
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          #attributes: array:24 [
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            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-1"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1102
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              #escapeWhenCastingToString: false
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            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1096
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1099
              #items: array:1 [
                0 => App\Models\Branch {#1121}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1189
              #items: array:3 [
                0 => App\Models\Branch {#1199
                  #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 [ …23]
                  #original: array:23 [ …23]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Branch {#1203
                  #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 [ …23]
                  #original: array:23 [ …23]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                   …2
                }
                2 => App\Models\Branch {#1207 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1180
              #items: array:1 [
                0 => App\Models\Element {#1182 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1717012"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717010"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1150
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1717011
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1102}
            "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 {#1096}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1099}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1189}
            "content" => Illuminate\Database\Eloquent\Collection {#1180}
            "next" => array:2 [
              "refs" => "1717012"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717010"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1150}
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        3 => App\Models\Task {#1183
          #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" => 1717012
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1196
              #items: array:1 [
                0 => App\Models\Term {#1118}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1186
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1184
              #items: array:1 [
                0 => App\Models\Branch {#1199}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1154
              #items: array:3 [
                0 => App\Models\Branch {#1199}
                1 => App\Models\Branch {#1203 …2}
                2 => App\Models\Branch {#1207 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1171
              #items: array:1 [
                0 => App\Models\Element {#1170 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1717013"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717011"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1178
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1717012
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1196}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1186}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1184}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1154}
            "content" => Illuminate\Database\Eloquent\Collection {#1171}
            "next" => array:2 [
              "refs" => "1717013"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717011"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1178}
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
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          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        4 => App\Models\Task {#1177
          #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" => 1717013
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1187
              #items: array:1 [
                0 => App\Models\Term {#1118}
              ]
              #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 {#1175
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1176
              #items: array:1 [
                0 => App\Models\Branch {#1199}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1173
              #items: array:3 [
                0 => App\Models\Branch {#1199}
                1 => App\Models\Branch {#1203 …2}
                2 => App\Models\Branch {#1207 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1159
              #items: array:1 [
                0 => App\Models\Element {#1162 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1717014"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717012"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1169
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1717013
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1187}
            "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 {#1175}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1176}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1173}
            "content" => Illuminate\Database\Eloquent\Collection {#1159}
            "next" => array:2 [
              "refs" => "1717014"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717012"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1169}
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        5 => App\Models\Task {#1166
          #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" => 1717014
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1174
              #items: array:1 [
                0 => App\Models\Term {#1118}
              ]
              #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 {#1165
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1167
              #items: array:1 [
                0 => App\Models\Branch {#1199}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1163
              #items: array:3 [
                0 => App\Models\Branch {#1199}
                1 => App\Models\Branch {#1203 …2}
                2 => App\Models\Branch {#1207 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1097
              #items: array:1 [
                0 => App\Models\Element {#1152 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1717015"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717013"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1157
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1717014
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1174}
            "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 {#1165}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1167}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1163}
            "content" => Illuminate\Database\Eloquent\Collection {#1097}
            "next" => array:2 [
              "refs" => "1717015"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717013"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1157}
            "page" => array:2 [
              "refs" => "1717369"
              "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 => "*"
          ]
        }
        6 => App\Models\Task {#1158
          #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" => 1717015
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-5"
            "field_display_title" => "5"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1164
              #items: array:1 [
                0 => App\Models\Term {#1118}
              ]
              #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 {#1185
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1155
              #items: array:1 [
                0 => App\Models\Branch {#1199}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1153
              #items: array:3 [
                0 => App\Models\Branch {#1199}
                1 => App\Models\Branch {#1203 …2}
                2 => App\Models\Branch {#1207 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1135
              #items: array:1 [
                0 => App\Models\Element {#1138 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1717016"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717014"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1098
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1717015
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-5"
            "field_display_title" => "5"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1164}
            "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 {#1185}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1155}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1153}
            "content" => Illuminate\Database\Eloquent\Collection {#1135}
            "next" => array:2 [
              "refs" => "1717016"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717014"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1098}
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        7 => App\Models\Task {#1091
          #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" => 1717016
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/temy63-6"
            "field_display_title" => "6"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1156
              #items: array:1 [
                0 => App\Models\Term {#1118}
              ]
              #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 {#1146
              #items: []
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1147
              #items: array:1 [
                0 => App\Models\Branch {#1199}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1145
              #items: array:3 [
                0 => App\Models\Branch {#1199}
                1 => App\Models\Branch {#1203 …2}
                2 => App\Models\Branch {#1207 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1117
              #items: array:1 [
                0 => App\Models\Element {#1110 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1717017"
              "type" => "task"
            ]
            "previous" => array:2 [
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            "book" => Illuminate\Database\Eloquent\Collection {#1137
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
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            "field_display_title" => "6"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1156}
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1146}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1147}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1145}
            "content" => Illuminate\Database\Eloquent\Collection {#1117}
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            "book" => Illuminate\Database\Eloquent\Collection {#1137}
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          #touches: []
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          #hidden: []
          #visible: []
          #fillable: []
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            0 => "*"
          ]
        }
        8 => App\Models\Task {#1134
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1717017
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr63-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1148
              #items: array:1 [
                0 => App\Models\Term {#1118}
              ]
              #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 {#1116
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1114
              #items: array:1 [
                0 => App\Models\Branch {#1199}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1262
              #items: array:3 [
                0 => App\Models\Branch {#1272 …30}
                1 => App\Models\Branch {#1276 …30}
                2 => App\Models\Branch {#1280 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1253
              #items: array:1 [
                0 => App\Models\Element {#1255 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1717018"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717016"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1223
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
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          ]
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            "id" => 1717017
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr63-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1148}
            "field_metatags_title" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1116}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1114}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1262}
            "content" => Illuminate\Database\Eloquent\Collection {#1253}
            "next" => array:2 [
              "refs" => "1717018"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717016"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1223}
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
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          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        9 => App\Models\Task {#1256
          #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" => 1717018
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr63-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1269
              #items: array:1 [
                0 => App\Models\Term {#1118}
              ]
              #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 {#1259
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1257
              #items: array:1 [
                0 => App\Models\Branch {#1272 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1227
              #items: array:3 [
                0 => App\Models\Branch {#1272 …30}
                1 => App\Models\Branch {#1276 …30}
                2 => App\Models\Branch {#1280 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1244
              #items: array:1 [
                0 => App\Models\Element {#1243 …30}
              ]
              #escapeWhenCastingToString: false
            }
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              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1251
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                0 => App\Models\Book {#1006}
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              #escapeWhenCastingToString: false
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              "type" => "book_page"
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            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr63-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1269}
            "field_metatags_title" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1259}
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1227}
            "content" => Illuminate\Database\Eloquent\Collection {#1244}
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            "book" => Illuminate\Database\Eloquent\Collection {#1251}
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        10 => App\Models\Task {#1250
          #connection: "mysql"
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          #primaryKey: "id"
          #keyType: "int"
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1717019
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            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr63-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1260
              #items: array:1 [
                0 => App\Models\Term {#1118}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1248
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1249
              #items: array:1 [
                0 => App\Models\Branch {#1272 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1246
              #items: array:3 [
                0 => App\Models\Branch {#1272 …30}
                1 => App\Models\Branch {#1276 …30}
                2 => App\Models\Branch {#1280 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1232
              #items: array:1 [
                0 => App\Models\Element {#1235 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1717020"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717018"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1242
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1717019
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr63-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1260}
            "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 {#1248}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1249}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1246}
            "content" => Illuminate\Database\Eloquent\Collection {#1232}
            "next" => array:2 [
              "refs" => "1717020"
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            "book" => Illuminate\Database\Eloquent\Collection {#1242}
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            0 => "*"
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        }
        11 => App\Models\Task {#1239
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
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            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr63-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1247
              #items: array:1 [
                0 => App\Models\Term {#1118}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1238
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1240
              #items: array:1 [
                0 => App\Models\Branch {#1272 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1236
              #items: array:3 [
                0 => App\Models\Branch {#1272 …30}
                1 => App\Models\Branch {#1276 …30}
                2 => App\Models\Branch {#1280 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1119
              #items: array:1 [
                0 => App\Models\Element {#1225 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
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            ]
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            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1230
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
            ]
          ]
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            "id" => 1717020
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            "field_page_start" => "63"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr63-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1247}
            "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 {#1238}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1240}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1236}
            "content" => Illuminate\Database\Eloquent\Collection {#1119}
            "next" => array:2 [
              "refs" => "1717021"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717019"
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            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1230}
            "page" => array:2 [
              "refs" => "1717369"
              "type" => "book_page"
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          ]
          #changes: []
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          #attributeCastCache: []
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          #touches: []
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          #hidden: []
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            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
  ]
  #original: array:21 [
    "id" => 1717369
    "created_at" => "2026-04-08 17:28:58"
    "updated_at" => null
    "field_page_start" => "63"
    "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-63"
    "field_display_title" => "63"
    "field_folder" => "1"
    "field_image_name" => "63"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1038}
    "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 {#1036}
    "content" => Illuminate\Database\Eloquent\Collection {#1047}
    "next" => array:2 [
      "refs" => "1717370"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1717368"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1040}
  ]
  #changes: []
  #casts: []
  #classCastCache: []
  #attributeCastCache: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
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  #relations: []
  #touches: []
  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Физика, 9 класс Учебник, автор: Кабардин Олег Фёдорович, издательство Просвещение, Москва, 2014, радужного цвета, страница 63
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