Страница 87 - гдз по физике 9 класс учебник Кабардин

Cтраница 87

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" => 1717393
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "87"
    "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-87"
    "field_display_title" => "87"
    "field_folder" => "1"
    "field_image_name" => "87"
    "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
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:50 [
            "id" => 862
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#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 [
                    "id" => 6493
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Физика"
                    "field_abbreviated_name" => null
                    "field_cases" => array:6 [
                      "field_accusative_case" => "физику"
                      "field_creative_case" => "физикой"
                      "field_dative_case" => "физике"
                      "field_genitive_case" => "физики"
                      "field_nominative_case" => "физика"
                      "field_prepositional_case" => "физике"
                    ]
                    "field_foreign_lang_name" => null
                    "field_short_name" => null
                    "field_subject_type" => "technical_subject"
                    "field_translit" => "fizika"
                  ]
                  #original: array:10 [
                    "id" => 6493
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Физика"
                    "field_abbreviated_name" => null
                    "field_cases" => array:6 [
                      "field_accusative_case" => "физику"
                      "field_creative_case" => "физикой"
                      "field_dative_case" => "физике"
                      "field_genitive_case" => "физики"
                      "field_nominative_case" => "физика"
                      "field_prepositional_case" => "физике"
                    ]
                    "field_foreign_lang_name" => null
                    "field_short_name" => null
                    "field_subject_type" => "technical_subject"
                    "field_translit" => "fizika"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_class" => Illuminate\Database\Eloquent\Collection {#1028
              #items: array:1 [
                0 => App\Models\Term {#1027
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 5458
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "9"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "девятый"
                      "field_creative_case" => "девятым"
                      "field_dative_case" => "девятому"
                      "field_genitive_case" => "девятого"
                      "field_nominative_case" => "девятый"
                      "field_prepositional_case" => "девятом"
                    ]
                    "field_translit" => "devjatyj"
                  ]
                  #original: array:6 [
                    "id" => 5458
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "9"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "девятый"
                      "field_creative_case" => "девятым"
                      "field_dative_case" => "девятому"
                      "field_genitive_case" => "девятого"
                      "field_nominative_case" => "девятый"
                      "field_prepositional_case" => "девятом"
                    ]
                    "field_translit" => "devjatyj"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1024
              #items: array:1 [
                0 => App\Models\Term {#1018
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 5153
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Просвещение"
                    "field_cases" => null
                    "field_translit" => "prosveschenie"
                  ]
                  #original: array:6 [
                    "id" => 5153
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Просвещение"
                    "field_cases" => null
                    "field_translit" => "prosveschenie"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author" => Illuminate\Database\Eloquent\Collection {#1033
              #items: array:1 [
                0 => App\Models\Term {#1032
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [
                    "id" => 4514
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Кабардин"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Олег"
                    "field_patronymic" => "Фёдорович"
                    "field_surname_rp" => "Кабардина"
                  ]
                  #original: array:12 [
                    "id" => 4514
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Кабардин"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Олег"
                    "field_patronymic" => "Фёдорович"
                    "field_surname_rp" => "Кабардина"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1021
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1025
              #items: array:1 [
                0 => App\Models\Term {#1022
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:10 [
                    "id" => 6671
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Учебник"
                    "field_book_type_foreign" => null
                    "field_cases" => array:6 [
                      "field_accusative_case" => "учебник"
                      "field_creative_case" => "учебником"
                      "field_dative_case" => "учебнику"
                      "field_genitive_case" => "учебника"
                      "field_nominative_case" => "учебник"
                      "field_prepositional_case" => "учебнике"
                    ]
                    "field_plural_form" => null
                    "field_short_name" => null
                    "field_short_name_foreign" => null
                    "field_translit" => "uchebnik"
                  ]
                  #original: array:10 [
                    "id" => 6671
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Учебник"
                    "field_book_type_foreign" => null
                    "field_cases" => array:6 [
                      "field_accusative_case" => "учебник"
                      "field_creative_case" => "учебником"
                      "field_dative_case" => "учебнику"
                      "field_genitive_case" => "учебника"
                      "field_nominative_case" => "учебник"
                      "field_prepositional_case" => "учебнике"
                    ]
                    "field_plural_form" => null
                    "field_short_name" => null
                    "field_short_name_foreign" => null
                    "field_translit" => "uchebnik"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1023
              #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 [
                    "id" => 9
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Россия"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "rossiya"
                  ]
                  #original: array:6 [
                    "id" => 9
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Россия"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "rossiya"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1035
              #items: array:1 [
                0 => App\Models\Term {#1030
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 15
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Москва"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "moskva"
                  ]
                  #original: array:6 [
                    "id" => 15
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Москва"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "moskva"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_series" => Illuminate\Database\Eloquent\Collection {#1043
              #items: array:1 [
                0 => App\Models\Term {#1042
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:8 [
                    "id" => 4702
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "архимед"
                    "field_cases" => null
                    "field_foreign_lang_series" => null
                    "field_transcription_eng" => null
                    "field_translit" => "arkhimed"
                  ]
                  #original: array:8 [
                    "id" => 4702
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "архимед"
                    "field_cases" => null
                    "field_foreign_lang_series" => null
                    "field_transcription_eng" => null
                    "field_translit" => "arkhimed"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1019
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1036
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1040
              #items: array:1 [
                0 => App\Models\Term {#1034
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:10 [
                    "id" => 6706
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "ФГОС (старый)"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_color" => null
                    "field_end_year" => "2022"
                    "field_start_year" => "2019"
                    "field_translit" => "fgos-old"
                    "field_type" => null
                  ]
                  #original: array:10 [
                    "id" => 6706
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "ФГОС (старый)"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
                      "field_creative_case" => null
                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_color" => null
                    "field_end_year" => "2022"
                    "field_start_year" => "2019"
                    "field_translit" => "fgos-old"
                    "field_type" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1037
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1039
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2014"
            "field_publication_year_until" => null
            "field_part" => ""
            "field_part_writing" => ""
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебник для общеобразовательных организаций"
            "field_allowed" => null
            "field_reserve_field" => null
            "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?ts=1763648103"
            ]
            "field_cover_alts" => array:1 [
              0 => ""
            ]
            "field_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/fizika_09/kabardin-u/covers/cover1.webp?ts=1763648103"
                "alt" => ""
                "width" => "2286"
                "height" => "3086"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1038
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1044
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1045
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/9-klass/fizika/kabardin-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1049
              #items: array:1 [
                0 => App\Models\Term {#1046
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 55
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "радужный"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "радужный"
                      "field_creative_case" => "радужным"
                      "field_dative_case" => "радужному"
                      "field_genitive_case" => "радужного"
                      "field_nominative_case" => "радужный"
                      "field_prepositional_case" => "радужном"
                    ]
                    "field_translit" => "raduzhnyy"
                  ]
                  #original: array:6 [
                    "id" => 55
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "радужный"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "радужный"
                      "field_creative_case" => "радужным"
                      "field_dative_case" => "радужному"
                      "field_genitive_case" => "радужного"
                      "field_nominative_case" => "радужный"
                      "field_prepositional_case" => "радужном"
                    ]
                    "field_translit" => "raduzhnyy"
                  ]
                  #changes: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
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                    0 => "*"
                  ]
                }
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            "field_metatags_title" => null
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            "breadcrumbs" => array:3 [
              "class" => 380
              "subject" => 556
              "class_subject" => 493
            ]
          ]
          #original: array:50 [
            "id" => 862
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
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            "field_class" => Illuminate\Database\Eloquent\Collection {#1028}
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            "field_author" => Illuminate\Database\Eloquent\Collection {#1033}
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1021}
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1025}
            "field_country" => Illuminate\Database\Eloquent\Collection {#1023}
            "field_city" => Illuminate\Database\Eloquent\Collection {#1035}
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            "field_umk" => Illuminate\Database\Eloquent\Collection {#1019}
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            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1040}
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1037}
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            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2014"
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            "field_part" => ""
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              0 => "/media/fizika_09/kabardin-u/covers/cover1.webp?ts=1763648103"
            ]
            "field_cover_alts" => array:1 [
              0 => ""
            ]
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              0 => array:4 [
                "path" => "/media/fizika_09/kabardin-u/covers/cover1.webp?ts=1763648103"
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              ]
            ]
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            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1044}
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            "field_url" => "/9-klass/fizika/kabardin-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1049}
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            ]
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        }
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                0 => App\Models\Edition {#1060
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                    "id" => 7243
                    "created_at" => "2026-04-10 13:58:26"
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1062
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                    "field_content_type" => "free"
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                    "field_content_text_checked" => "0"
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                    "field_solution_author" => "Автор"
                    "field_moderator" => "stas"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1068
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                    "field_process_formula" => "katex"
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                    }
                    "field_content_source" => null
                  ]
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_process_formula" => "katex"
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                    "field_content_source" => null
                  ]
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            "edition" => Illuminate\Database\Eloquent\Collection {#1061}
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            "img" => array:1 [
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                "path" => "/media/fizika_09/kabardin-u/0-1/87-1.webp?ts=1763725651"
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      ]
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    "next" => Illuminate\Database\Eloquent\Collection {#5870
      #items: array:1 [
        0 => App\Models\BookPage {#5865
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
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            "created_at" => "2026-04-10 13:58:26"
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            "field_display_title" => "88"
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            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5868
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            }
            "field_weight" => "0"
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#5869
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            "content" => Illuminate\Database\Eloquent\Collection {#5885
              #items: array:1 [
                0 => App\Models\Element {#5884
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
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                    "created_at" => "2026-04-10 13:58:26"
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                    0 => "*"
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    "previous" => Illuminate\Database\Eloquent\Collection {#5861
      #items: array:1 [
        0 => App\Models\BookPage {#5860
          #connection: "mysql"
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            }
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            "content" => Illuminate\Database\Eloquent\Collection {#5874
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                0 => App\Models\Element {#5873
                  #connection: "mysql"
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                    "created_at" => "2026-04-10 13:58:26"
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                      #escapeWhenCastingToString: false
                    }
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                    "edition" => Illuminate\Database\Eloquent\Collection {#5875}
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                    "img" => array:1 [
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                    0 => "*"
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            "next" => array:2 [
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            "tasks" => Illuminate\Database\Eloquent\Collection {#5866
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              #escapeWhenCastingToString: false
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            "field_image_name" => "86"
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            "tasks" => Illuminate\Database\Eloquent\Collection {#5866}
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            0 => "*"
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      ]
      #escapeWhenCastingToString: false
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    "tasks" => Illuminate\Database\Eloquent\Collection {#1052
      #items: array:1 [
        0 => App\Models\Task {#1054
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
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            "field_url" => "/9-klass/fizika/kabardin-uchebnik/tvor87-1"
            "field_display_title" => "Творческое задание"
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            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1057
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            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1074
              #items: array:1 [
                0 => App\Models\Branch {#1073
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
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                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1716753
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Законы сохранения"
                    "field_branch_order" => null
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1075
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                      #escapeWhenCastingToString: false
                    }
                    "field_page_start" => "60"
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                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1076
                      #items: array:1 [
                        0 => App\Models\Book {#1015}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1077
                      #items: []
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                    }
                  ]
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                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1075}
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                    "book" => Illuminate\Database\Eloquent\Collection {#1076}
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                    0 => "*"
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              ]
              #escapeWhenCastingToString: false
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1106
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                0 => App\Models\Branch {#1114
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1716753
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Законы сохранения"
                    "field_branch_order" => null
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1115
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_page_start" => "60"
                    "field_branch_display" => "0"
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                    "field_display_branch_page" => "1"
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                    "field_navigation_title" => null
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                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1116
                      #items: array:1 [
                        0 => App\Models\Book {#1015}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1117
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                  ]
                  #original: array:24 [
                    "id" => 1716753
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Законы сохранения"
                    "field_branch_order" => null
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1115}
                    "field_page_start" => "60"
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1116}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1117}
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                1 => App\Models\Branch {#1118
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1716774
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Закон сохранения энергии в тепловых процессах"
                    "field_branch_order" => "19"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1122
                      #items: array:1 [
                        0 => App\Models\Term {#1119
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:7 [
                            "id" => 32
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Параграф"
                            "field_cases" => array:6 [
                              "field_accusative_case" => "Параграф"
                              "field_creative_case" => "Параграфом"
                              "field_dative_case" => "Параграфу"
                              "field_genitive_case" => "Параграфа"
                              "field_nominative_case" => "Параграф"
                              "field_prepositional_case" => "Параграфе"
                            ]
                            "field_page_check_not_needed" => null
                            "field_short_name" => "§"
                          ]
                          #original: array:7 [
                            "id" => 32
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Параграф"
                            "field_cases" => array:6 [
                              "field_accusative_case" => "Параграф"
                              "field_creative_case" => "Параграфом"
                              "field_dative_case" => "Параграфу"
                              "field_genitive_case" => "Параграфа"
                              "field_nominative_case" => "Параграф"
                              "field_prepositional_case" => "Параграфе"
                            ]
                            "field_page_check_not_needed" => null
                            "field_short_name" => "§"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_page_start" => "84"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1121
                      #items: array:1 [
                        0 => App\Models\Book {#1015}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1120
                      #items: array:1 [
                        0 => App\Models\Branch {#1073}
                      ]
                      #escapeWhenCastingToString: false
                    }
                  ]
                  #original: array:24 [
                    "id" => 1716774
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Закон сохранения энергии в тепловых процессах"
                    "field_branch_order" => "19"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1122}
                    "field_page_start" => "84"
                    "field_branch_display" => "0"
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                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
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                    "field_h1" => null
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                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1121}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1120}
                  ]
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                  #attributeCastCache: []
                  #dateFormat: null
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1098
              #items: array:1 [
                0 => App\Models\Element {#1099
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [
                    "id" => 1859469
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#1097
                      #items: array:1 [
                        0 => App\Models\Edition {#1060}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "task" => array:2 [
                      "refs" => "1717076"
                      "type" => "task"
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                    "text" => "<p><strong>Творческое задание</strong></p><p>Экспериментально установлено, что при постоянном давлении нагревание воздуха на 1 °C приводит к увеличению его объёма на 0,366 % от объёма при 0 °C. Удельная теплоёмкость воздуха при постоянном давлении 101325 Па равна $c_p = 240 \text{ кал}/(\text{кг} \cdot \text{°C})$. В процессе нагревания при постоянном объёме удельная теплоёмкость воздуха равна $c_v = 171 \text{ кал}/(\text{кг} \cdot \text{°C})$. По этим данным вычислите значение механического эквивалента теплоты.</p>"
                    "img" => array:1 [
                      0 => array:5 [
                        "name" => "1-1.jpg"
                        "alt" => null
                        "width" => "1793"
                        "height" => 461
                        "path" => "/media/fizika_09/kabardin-u/0-tvor87/1-1.webp?ts=1763725018"
                      ]
                    ]
                  ]
                  #original: array:7 [
                    "id" => 1859469
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#1097}
                    "task" => array:2 [
                      "refs" => "1717076"
                      "type" => "task"
                    ]
                    "text" => "<p><strong>Творческое задание</strong></p><p>Экспериментально установлено, что при постоянном давлении нагревание воздуха на 1 °C приводит к увеличению его объёма на 0,366 % от объёма при 0 °C. Удельная теплоёмкость воздуха при постоянном давлении 101325 Па равна $c_p = 240 \text{ кал}/(\text{кг} \cdot \text{°C})$. В процессе нагревания при постоянном объёме удельная теплоёмкость воздуха равна $c_v = 171 \text{ кал}/(\text{кг} \cdot \text{°C})$. По этим данным вычислите значение механического эквивалента теплоты.</p>"
                    "img" => array:1 [
                      0 => array:5 [
                        "name" => "1-1.jpg"
                        "alt" => null
                        "width" => "1793"
                        "height" => 461
                        "path" => "/media/fizika_09/kabardin-u/0-tvor87/1-1.webp?ts=1763725018"
                      ]
                    ]
                  ]
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                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
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            ]
            "previous" => array:2 [
              "refs" => "1717075"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1056
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1717393"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
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            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "87"
            "field_page_end" => null
            "field_url" => "/9-klass/fizika/kabardin-uchebnik/tvor87-1"
            "field_display_title" => "Творческое задание"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1057}
            "field_metatags_title" => null
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            "field_h1" => null
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            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1055}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1074}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1106}
            "content" => Illuminate\Database\Eloquent\Collection {#1098}
            "next" => array:2 [
              "refs" => "1717077"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1717075"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1056}
            "page" => array:2 [
              "refs" => "1717393"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
  ]
  #original: array:21 [
    "id" => 1717393
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "87"
    "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-87"
    "field_display_title" => "87"
    "field_folder" => "1"
    "field_image_name" => "87"
    "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 {#1051}
    "next" => array:2 [
      "refs" => "1717394"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1717392"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1052}
  ]
  #changes: []
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  #classCastCache: []
  #attributeCastCache: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
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  #relations: []
  #touches: []
  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}