Страница 233 - гдз по физике 8 класс учебник Громов, Родина

Физика, 8 класс Учебник, авторы: Громов Сергей Васильевич, Родина Надежда Александровна, Белага Виктория Владимировна, Ломаченков Иван Алексеевич, Панебратцев Юрий Анатольевич, издательство Просвещение, Москва, 2018

Авторы: Громов С. В., Родина Н. А., Белага В. В., Ломаченков И. А., Панебратцев Ю. А.

Тип: Учебник

Серия: классический курс

Издательство: Просвещение

Год издания: 2018 - 2026

Цвет обложки: синий

ISBN: 978-5-09-052825-2

Cтраница 233

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" => 1613306
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "233"
    "field_url" => "/8-klass/fizika/gromov-uchebnik/page-233"
    "field_display_title" => "233"
    "field_folder" => "1"
    "field_image_name" => "233"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008
      #items: []
      #escapeWhenCastingToString: false
    }
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1042
      #items: array:1 [
        0 => App\Models\Book {#1006
          #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" => 3654
            "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 {#1009
              #items: array:1 [
                0 => App\Models\Term {#1007
                  #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 {#1010
              #items: array:1 [
                0 => App\Models\Term {#1011
                  #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" => 5457
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "8"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "восьмой"
                      "field_creative_case" => "восьмым"
                      "field_dative_case" => "восьмому"
                      "field_genitive_case" => "восьмого"
                      "field_nominative_case" => "восьмой"
                      "field_prepositional_case" => "восьмом"
                    ]
                    "field_translit" => "vosmoj"
                  ]
                  #original: array:6 [
                    "id" => 5457
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "8"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "восьмой"
                      "field_creative_case" => "восьмым"
                      "field_dative_case" => "восьмому"
                      "field_genitive_case" => "восьмого"
                      "field_nominative_case" => "восьмой"
                      "field_prepositional_case" => "восьмом"
                    ]
                    "field_translit" => "vosmoj"
                  ]
                  #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 {#1012
              #items: array:1 [
                0 => App\Models\Term {#1013
                  #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 {#1014
              #items: array:5 [
                0 => App\Models\Term {#1015
                  #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" => 4194
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Громов"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Сергей"
                    "field_patronymic" => "Васильевич"
                    "field_surname_rp" => null
                  ]
                  #original: array:12 [
                    "id" => 4194
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Громов"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Сергей"
                    "field_patronymic" => "Васильевич"
                    "field_surname_rp" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                1 => App\Models\Term {#1016
                  #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" => 5604
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Родина"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Надежда"
                    "field_patronymic" => "Александровна"
                    "field_surname_rp" => null
                  ]
                  #original: array:12 [
                    "id" => 5604
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Родина"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Надежда"
                    "field_patronymic" => "Александровна"
                    "field_surname_rp" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                2 => App\Models\Term {#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:12 [
                    "id" => 3824
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Белага"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Виктория"
                    "field_patronymic" => "Владимировна"
                    "field_surname_rp" => null
                  ]
                  #original: array:12 [
                    "id" => 3824
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Белага"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Виктория"
                    "field_patronymic" => "Владимировна"
                    "field_surname_rp" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                3 => App\Models\Term {#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:12 [
                    "id" => 5014
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Ломаченков"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Иван"
                    "field_patronymic" => "Алексеевич"
                    "field_surname_rp" => null
                  ]
                  #original: array:12 [
                    "id" => 5014
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Ломаченков"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Иван"
                    "field_patronymic" => "Алексеевич"
                    "field_surname_rp" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                4 => App\Models\Term {#1019
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:12 [
                    "id" => 5412
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Панебратцев"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Юрий"
                    "field_patronymic" => "Анатольевич"
                    "field_surname_rp" => "Панебратцева"
                  ]
                  #original: array:12 [
                    "id" => 5412
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Панебратцев"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Юрий"
                    "field_patronymic" => "Анатольевич"
                    "field_surname_rp" => "Панебратцева"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1020
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_book_type" => 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
                  #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"
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                    "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: []
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1023
              #items: array:1 [
                0 => App\Models\Term {#1024
                  #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
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                      "field_dative_case" => null
                      "field_genitive_case" => null
                      "field_nominative_case" => null
                      "field_prepositional_case" => null
                    ]
                    "field_translit" => "rossiya"
                  ]
                  #changes: []
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                  #attributeCastCache: []
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                  #visible: []
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                  #guarded: array:1 [
                    0 => "*"
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              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1025
              #items: array:1 [
                0 => App\Models\Term {#1026
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +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
                    ]
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            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1038}
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                0 => App\Models\Edition {#1052
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                            "created_at" => "2026-04-10 13:58:26"
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                            "created_at" => "2026-04-10 13:58:26"
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          #keyType: "int"
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            }
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                0 => App\Models\Element {#5914
                  #connection: "mysql"
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                  #attributes: array:6 [
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                    "created_at" => "2026-04-10 13:58:26"
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                    "edition" => Illuminate\Database\Eloquent\Collection {#5913
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                    }
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                    ]
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                  #original: array:6 [
                    "id" => 1851018
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#5913}
                    "book_page" => array:2 [
                      "refs" => "1613307"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [
                        "name" => "234-1.jpg"
                        "alt" => null
                        "width" => "1871"
                        "height" => 2553
                        "path" => "/media/fizika_08/gromov-u/0-1/234-1.webp?ts=1763478443"
                      ]
                    ]
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1613308"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1613306"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5929
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:21 [
            "id" => 1613307
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "234"
            "field_url" => "/8-klass/fizika/gromov-uchebnik/page-234"
            "field_display_title" => "234"
            "field_folder" => "1"
            "field_image_name" => "234"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5874}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5873}
            "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 {#5872}
            "content" => Illuminate\Database\Eloquent\Collection {#5915}
            "next" => array:2 [
              "refs" => "1613308"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1613306"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5929}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "previous" => Illuminate\Database\Eloquent\Collection {#5864
      #items: array:1 [
        0 => App\Models\BookPage {#5863
          #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" => 1613305
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "232"
            "field_url" => "/8-klass/fizika/gromov-uchebnik/page-232"
            "field_display_title" => "232"
            "field_folder" => "1"
            "field_image_name" => "232"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5865
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5866
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#5867
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#5877
              #items: array:1 [
                0 => App\Models\Element {#5876
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 1851016
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#5878
                      #items: array:1 [
                        0 => App\Models\Edition {#1052}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "book_page" => array:2 [
                      "refs" => "1613305"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [
                        "name" => "232-1.jpg"
                        "alt" => null
                        "width" => "1865"
                        "height" => 2548
                        "path" => "/media/fizika_08/gromov-u/0-1/232-1.webp?ts=1763478443"
                      ]
                    ]
                  ]
                  #original: array:6 [
                    "id" => 1851016
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#5878}
                    "book_page" => array:2 [
                      "refs" => "1613305"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [
                        "name" => "232-1.jpg"
                        "alt" => null
                        "width" => "1865"
                        "height" => 2548
                        "path" => "/media/fizika_08/gromov-u/0-1/232-1.webp?ts=1763478443"
                      ]
                    ]
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1613306"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1613304"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5881
              #items: array:1 [
                0 => App\Models\Task {#5880
                  #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" => 1612796
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "232"
                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/gromov-uchebnik/57vspom-1"
                    "field_display_title" => "1"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5885
                      #items: array:1 [
                        0 => App\Models\Term {#5882
                          #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" => 26
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "номер"
                            "field_cases" => array:6 [
                              "field_accusative_case" => "номер"
                              "field_creative_case" => "номером"
                              "field_dative_case" => "номеру"
                              "field_genitive_case" => "номера"
                              "field_nominative_case" => "номер"
                              "field_prepositional_case" => "номере"
                            ]
                            "field_short_name" => ""
                          ]
                          #original: array:6 [
                            "id" => 26
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "номер"
                            "field_cases" => array:6 [
                              "field_accusative_case" => "номер"
                              "field_creative_case" => "номером"
                              "field_dative_case" => "номеру"
                              "field_genitive_case" => "номера"
                              "field_nominative_case" => "номер"
                              "field_prepositional_case" => "номере"
                            ]
                            "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_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 {#5884
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5894
                      #items: array:1 [
                        0 => App\Models\Branch {#5893
                          #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" => 1612204
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "field_display_title" => "Оптические явления"
                            "field_branch_order" => "5"
                            "field_url" => null
                            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#5898
                              #items: array:1 [
                                0 => App\Models\Term {#5895
                                  #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" => 29
                                    "created_at" => "2026-04-10 13:58:26"
                                    "updated_at" => null
                                    "name" => "Глава"
                                    "field_cases" => array:6 [
                                      "field_accusative_case" => "Главу"
                                      "field_creative_case" => "Главой"
                                      "field_dative_case" => "Главе"
                                      "field_genitive_case" => "Главы"
                                      "field_nominative_case" => "Глава"
                                      "field_prepositional_case" => "Главе"
                                    ]
                                    "field_page_check_not_needed" => null
                                    "field_short_name" => null
                                  ]
                                  #original: array:7 [
                                    "id" => 29
                                    "created_at" => "2026-04-10 13:58:26"
                                    "updated_at" => null
                                    "name" => "Глава"
                                    "field_cases" => array:6 [
                                      "field_accusative_case" => "Главу"
                                      "field_creative_case" => "Главой"
                                      "field_dative_case" => "Главе"
                                      "field_genitive_case" => "Главы"
                                      "field_nominative_case" => "Глава"
                                      "field_prepositional_case" => "Главе"
                                    ]
                                    "field_page_check_not_needed" => null
                                    "field_short_name" => 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_page_start" => "216"
                            "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 {#5897
                              #items: array:1 [
                                0 => App\Models\Book {#1006}
                              ]
                              #escapeWhenCastingToString: false
                            }
                            "branch_parent" => Illuminate\Database\Eloquent\Collection {#5896
                              #items: []
                              #escapeWhenCastingToString: false
                            }
                          ]
                          #original: array:24 [
                            "id" => 1612204
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "field_display_title" => "Оптические явления"
                            "field_branch_order" => "5"
                            "field_url" => null
                            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#5898}
                            "field_page_start" => "216"
                            "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 {#5897}
                            "branch_parent" => Illuminate\Database\Eloquent\Collection {#5896}
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5931
                      #items: array:3 [
                        0 => App\Models\Branch {#5941
                          #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" => 1612204
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "field_display_title" => "Оптические явления"
                            "field_branch_order" => "5"
                            "field_url" => null
                            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#5942
                              #items: array:1 [
                                0 => App\Models\Term {#5895}
                              ]
                              #escapeWhenCastingToString: false
                            }
                            "field_page_start" => "216"
                            "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 {#5943
                              #items: array:1 [
                                0 => App\Models\Book {#1006}
                              ]
                              #escapeWhenCastingToString: false
                            }
                            "branch_parent" => Illuminate\Database\Eloquent\Collection {#5944
                              #items: []
                              #escapeWhenCastingToString: false
                            }
                          ]
                          #original: array:24 [
                            "id" => 1612204
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "field_display_title" => "Оптические явления"
                            "field_branch_order" => "5"
                            "field_url" => null
                            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#5942}
                            "field_page_start" => "216"
                            "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 {#5943}
                            "branch_parent" => Illuminate\Database\Eloquent\Collection {#5944}
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        1 => App\Models\Branch {#5945
                          #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" => 1612218
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "field_display_title" => "Преломление света"
                            "field_branch_order" => "57"
                            "field_url" => null
                            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#5949
                              #items: array:1 [
                                0 => App\Models\Term {#5946
                                  #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 [
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                            "book" => Illuminate\Database\Eloquent\Collection {#5948
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                            "branch_parent" => Illuminate\Database\Eloquent\Collection {#5947
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                            "field_display_title" => "Преломление света"
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                          #connection: "mysql"
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                            "created_at" => "2026-04-10 13:58:26"
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                            "text" => "<p>Закон отражения света.</p>"
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                                "alt" => null
                                "width" => "638"
                                "height" => 140
                                "path" => "/media/fizika_08/gromov-u/0-57vspom/1-1.webp?ts=1763478020"
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                            "text" => "<p>Закон отражения света.</p>"
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                                "width" => "638"
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                        1 => App\Models\Element {#5922
                          #connection: "mysql"
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                          #primaryKey: "id"
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                            "id" => 1900581
                            "created_at" => "2026-04-10 13:58:26"
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                                0 => App\Models\Edition {#5920
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                                  #primaryKey: "id"
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                                    "id" => 7854
                                    "created_at" => "2026-04-10 13:58:26"
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                                    "title" => "Решение"
                                    "field_order" => "2"
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                                    "field_solution_author" => "Gemini 2.5 Pro"
                                    "field_moderator" => "tolik"
                                    "field_edition_type" => "solution"
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                                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#5918
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                            "task" => array:2 [
                              "refs" => "1612796"
                              "type" => "task"
                            ]
                            "text" => "<p>Закон отражения света — это фундаментальный физический закон, описывающий поведение светового луча при падении на границу раздела двух сред (например, на поверхность зеркала). Закон состоит из двух положений.</p><p><strong>Первое положение</strong>: Падающий луч, отражённый луч и перпендикуляр (нормаль), проведённый к отражающей поверхности в точке падения луча, лежат в одной плоскости.</p><p><strong>Второе положение</strong>: Угол отражения света равен углу его падения.</p><p>Для описания этих положений вводятся следующие понятия:</p><ul><li><em>Угол падения</em> ($\alpha$) — это угол между падающим лучом и нормалью к поверхности.</li><li><em>Угол отражения</em> ($\beta$) — это угол между отражённым лучом и нормалью.</li></ul><p>Математически второе положение закона отражения записывается в виде простой формулы:</p><p>$\alpha = \beta$</p><p>Важно отметить, что углы измеряются именно относительно перпендикуляра к поверхности, а не относительно самой поверхности. Этот закон справедлив для любого типа отражения: как для зеркального (от гладких поверхностей, когда параллельные лучи остаются параллельными после отражения), так и для диффузного (от шероховатых поверхностей, когда параллельные лучи рассеиваются в разных направлениях, но для каждой микроскопической точки поверхности закон всё равно выполняется).</p><p><strong>Ответ:</strong> Закон отражения света формулируется так: падающий луч, отраженный луч и перпендикуляр к границе раздела двух сред в точке падения лежат в одной плоскости, причём угол отражения $\beta$ равен углу падения $\alpha$, то есть $\alpha = \beta$.</p>"
                          ]
                          #original: array:6 [
                            "id" => 1900581
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
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                            "task" => array:2 [
                              "refs" => "1612796"
                              "type" => "task"
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                            "text" => "<p>Закон отражения света — это фундаментальный физический закон, описывающий поведение светового луча при падении на границу раздела двух сред (например, на поверхность зеркала). Закон состоит из двух положений.</p><p><strong>Первое положение</strong>: Падающий луч, отражённый луч и перпендикуляр (нормаль), проведённый к отражающей поверхности в точке падения луча, лежат в одной плоскости.</p><p><strong>Второе положение</strong>: Угол отражения света равен углу его падения.</p><p>Для описания этих положений вводятся следующие понятия:</p><ul><li><em>Угол падения</em> ($\alpha$) — это угол между падающим лучом и нормалью к поверхности.</li><li><em>Угол отражения</em> ($\beta$) — это угол между отражённым лучом и нормалью.</li></ul><p>Математически второе положение закона отражения записывается в виде простой формулы:</p><p>$\alpha = \beta$</p><p>Важно отметить, что углы измеряются именно относительно перпендикуляра к поверхности, а не относительно самой поверхности. Этот закон справедлив для любого типа отражения: как для зеркального (от гладких поверхностей, когда параллельные лучи остаются параллельными после отражения), так и для диффузного (от шероховатых поверхностей, когда параллельные лучи рассеиваются в разных направлениях, но для каждой микроскопической точки поверхности закон всё равно выполняется).</p><p><strong>Ответ:</strong> Закон отражения света формулируется так: падающий луч, отраженный луч и перпендикуляр к границе раздела двух сред в точке падения лежат в одной плоскости, причём угол отражения $\beta$ равен углу падения $\alpha$, то есть $\alpha = \beta$.</p>"
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                    "field_description_bottom" => null
                    "field_match" => null
                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#5884}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5894}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5931}
                    "content" => Illuminate\Database\Eloquent\Collection {#5886}
                    "next" => array:2 [
                      "refs" => "1612797"
                      "type" => "task"
                    ]
                    "previous" => array:2 [
                      "refs" => "1612795"
                      "type" => "task"
                    ]
                    "book" => Illuminate\Database\Eloquent\Collection {#5926}
                    "page" => array:2 [
                      "refs" => "1613305"
                      "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 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:21 [
            "id" => 1613305
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "232"
            "field_url" => "/8-klass/fizika/gromov-uchebnik/page-232"
            "field_display_title" => "232"
            "field_folder" => "1"
            "field_image_name" => "232"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5865}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5866}
            "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 {#5867}
            "content" => Illuminate\Database\Eloquent\Collection {#5877}
            "next" => array:2 [
              "refs" => "1613306"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1613304"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5881}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "tasks" => Illuminate\Database\Eloquent\Collection {#1043
      #items: []
      #escapeWhenCastingToString: false
    }
  ]
  #original: array:21 [
    "id" => 1613306
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "233"
    "field_url" => "/8-klass/fizika/gromov-uchebnik/page-233"
    "field_display_title" => "233"
    "field_folder" => "1"
    "field_image_name" => "233"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1042}
    "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 {#1040}
    "content" => Illuminate\Database\Eloquent\Collection {#1051}
    "next" => array:2 [
      "refs" => "1613307"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1613305"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1043}
  ]
  #changes: []
  #casts: []
  #classCastCache: []
  #attributeCastCache: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
  #observables: []
  #relations: []
  #touches: []
  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Физика, 8 класс Учебник, авторы: Громов Сергей Васильевич, Родина Надежда Александровна, Белага Виктория Владимировна, Ломаченков Иван Алексеевич, Панебратцев Юрий Анатольевич, издательство Просвещение, Москва, 2018, страница 233
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