Страница 54 - гдз по физике 8 класс учебник Пёрышкин

Физика, 8 класс Учебник, автор: Пёрышкин И М, издательство Просвещение, Москва, 2023, белого цвета

Авторы: Пёрышкин И. М.

Тип: Учебник

Издательство: Просвещение

Год издания: 2023 - 2026

Уровень обучения: базовый

Цвет обложки: белый с градусником

ISBN: 978-5-09-102555-2

Допущено Министерством просвещения Российской Федерации

Cтраница 54

App\Models\BookPage {#1003 // resources/views/models/book_page/default.blade.php
  #connection: "mysql"
  #table: "book_pages"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
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  #perPage: 15
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  #escapeWhenCastingToString: false
  #attributes: array:21 [
    "id" => 991418
    "created_at" => "2026-04-08 17:28:58"
    "updated_at" => null
    "field_page_start" => "54"
    "field_url" => "/8-klass/fizika/peryshkin-uchebnik/page-54"
    "field_display_title" => "54"
    "field_folder" => "1"
    "field_image_name" => "54"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008
      #items: []
      #escapeWhenCastingToString: false
    }
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1039
      #items: array:1 [
        0 => App\Models\Book {#1006
          #connection: "mysql"
          #table: "books"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: false
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          #attributes: array:50 [
            "id" => 51
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1009
              #items: array:1 [
                0 => App\Models\Term {#1007
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #attributes: array:10 [ …10]
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                }
              ]
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            }
            "field_class" => Illuminate\Database\Eloquent\Collection {#1010
              #items: array:1 [
                0 => App\Models\Term {#1011
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1012
              #items: array:1 [
                0 => App\Models\Term {#1013
                  #connection: "mysql"
                  #table: "terms"
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              ]
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            "field_author" => Illuminate\Database\Eloquent\Collection {#1014
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                0 => App\Models\Term {#1015
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              ]
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            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1016
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              #escapeWhenCastingToString: false
            }
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1017
              #items: array:1 [
                0 => App\Models\Term {#1018
                  #connection: "mysql"
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                  #primaryKey: "id"
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_country" => Illuminate\Database\Eloquent\Collection {#1019
              #items: array:1 [
                0 => App\Models\Term {#1020
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_city" => Illuminate\Database\Eloquent\Collection {#1021
              #items: array:1 [
                0 => App\Models\Term {#1022
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #withCount: []
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                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_series" => Illuminate\Database\Eloquent\Collection {#1023
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1024
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => 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: []
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                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
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                }
              ]
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            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1027
              #items: array:1 [
                0 => App\Models\Term {#1028
                  #connection: "mysql"
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                  #primaryKey: "id"
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                  #original: array:10 [ …10]
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => "3"
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1029
              #items: array:1 [
                0 => App\Models\Term {#1030
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1031
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
            "field_cover_description" => "с градусником"
            "field_publication_year" => "2023"
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            "field_part" => ""
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            "field_allowed" => "Допущено Министерством просвещения Российской Федерации"
            "field_reserve_field" => null
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            "field_tasks_count" => "706"
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            "field_default_folder" => "/fizika_08/Peryshkin-u23/"
            "field_isbn" => "978-5-09-102555-2"
            "field_cover" => array:1 [
              0 => "/media/fizika_08/Peryshkin-u23/covers/cover1.webp"
            ]
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              0 => ""
            ]
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              ]
            ]
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              #items: []
              #escapeWhenCastingToString: false
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            }
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              #items: []
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            }
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik"
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              #items: array:1 [
                0 => App\Models\Term {#1036
                  #connection: "mysql"
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    "next" => Illuminate\Database\Eloquent\Collection {#6147
      #items: array:1 [
        0 => App\Models\BookPage {#6142
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              #items: array:1 [
                0 => App\Models\Element {#6161
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            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#6145}
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            ]
            "previous" => array:2 [
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      ]
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    }
    "previous" => Illuminate\Database\Eloquent\Collection {#6138
      #items: array:1 [
        0 => App\Models\BookPage {#6137
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          #attributes: array:21 [
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            "field_display_title" => "53"
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            }
            "field_weight" => "0"
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            "field_metatags_title" => null
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            "content" => Illuminate\Database\Eloquent\Collection {#6151
              #items: array:1 [
                0 => App\Models\Element {#6150
                  #connection: "mysql"
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                }
              ]
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            }
            "next" => array:2 [
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            "previous" => array:2 [
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            "tasks" => Illuminate\Database\Eloquent\Collection {#6143
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            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#6139}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#6140}
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            "previous" => array:2 [
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            0 => "*"
          ]
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      ]
      #escapeWhenCastingToString: false
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    "tasks" => Illuminate\Database\Eloquent\Collection {#1041
      #items: array:10 [
        0 => App\Models\Task {#1067
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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          #attributes: array:24 [
            "id" => 598925
            "created_at" => "2026-04-08 17:28:58"
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            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1071
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                0 => App\Models\Term {#1068
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
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            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
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            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1108
              #items: array:1 [
                0 => App\Models\Branch {#1069
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                  +preventsLazyLoading: false
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1143
              #items: array:3 [
                0 => App\Models\Branch {#1153
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:23 [ …23]
                  #original: array:23 [ …23]
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                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Branch {#1158
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:23 [ …23]
                  #original: array:23 [ …23]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
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                  #dispatchesEvents: []
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                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Branch {#1163
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:23 [ …23]
                  #original: array:23 [ …23]
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1106
              #items: array:4 [
                0 => App\Models\Element {#1134
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:7 [ …7]
                  #original: array:7 [ …7]
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Element {#1132
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Element {#1123
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
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                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                3 => App\Models\Element {#1117
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598926"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598924"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1135
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598925
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-1-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1071}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1070}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1108}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1143}
            "content" => Illuminate\Database\Eloquent\Collection {#1106}
            "next" => array:2 [
              "refs" => "598926"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598924"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1135}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
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          #visible: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Task {#1141
          #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" => 598926
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-1-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1150
              #items: array:1 [
                0 => App\Models\Term {#1068}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1137
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1138
              #items: array:1 [
                0 => App\Models\Branch {#1153}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1136
              #items: array:3 [
                0 => App\Models\Branch {#1153}
                1 => App\Models\Branch {#1158}
                2 => App\Models\Branch {#1163}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1110
              #items: array:4 [
                0 => App\Models\Element {#1170
                  #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 [ …7]
                  #original: array:7 [ …7]
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                  #attributeCastCache: []
                  #dateFormat: null
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Element {#1171
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Element {#1178
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                3 => App\Models\Element {#1180
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [ …6]
                  #original: array:6 [ …6]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598927"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598925"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1167
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598926
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-1-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1150}
            "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 {#1137}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1138}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1136}
            "content" => Illuminate\Database\Eloquent\Collection {#1110}
            "next" => array:2 [
              "refs" => "598927"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598925"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1167}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #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 => "*"
          ]
        }
        2 => App\Models\Task {#1140
          #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" => 598927
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-1-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1139
              #items: array:1 [
                0 => App\Models\Term {#1068}
              ]
              #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 {#1148
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1145
              #items: array:1 [
                0 => App\Models\Branch {#1153}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1146
              #items: array:3 [
                0 => App\Models\Branch {#1153}
                1 => App\Models\Branch {#1158}
                2 => App\Models\Branch {#1163}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1111
              #items: array:4 [
                0 => App\Models\Element {#1190
                  #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 [ …7]
                  #original: array:7 [ …7]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Element {#1192
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                   …27
                }
                2 => App\Models\Element {#1194 …30}
                3 => App\Models\Element {#1196 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598928"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598926"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1188
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598927
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-1-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1139}
            "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 {#1148}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1145}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1146}
            "content" => Illuminate\Database\Eloquent\Collection {#1111}
            "next" => array:2 [
              "refs" => "598928"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598926"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1188}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        3 => App\Models\Task {#1147
          #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" => 598928
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-1-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1149
              #items: array:1 [
                0 => App\Models\Term {#1068}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1186
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1185
              #items: array:1 [
                0 => App\Models\Branch {#1153}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1187
              #items: array:3 [
                0 => App\Models\Branch {#1153}
                1 => App\Models\Branch {#1158}
                2 => App\Models\Branch {#1163}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1184
              #items: array:5 [
                0 => App\Models\Element {#1207 …30}
                1 => App\Models\Element {#1209 …30}
                2 => App\Models\Element {#1211 …30}
                3 => App\Models\Element {#1218 …30}
                4 => App\Models\Element {#1221 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598929"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598927"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1205
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598928
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-1-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1149}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1186}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1185}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1187}
            "content" => Illuminate\Database\Eloquent\Collection {#1184}
            "next" => array:2 [
              "refs" => "598929"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598927"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1205}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
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          #dateFormat: null
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          #hidden: []
          #visible: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        4 => App\Models\Task {#1142
          #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" => 598929
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-2-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1183
              #items: array:1 [
                0 => App\Models\Term {#1068}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1204
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1202
              #items: array:1 [
                0 => App\Models\Branch {#1153}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1323
              #items: array:3 [
                0 => App\Models\Branch {#1333 …30}
                1 => App\Models\Branch {#1337 …30}
                2 => App\Models\Branch {#1341 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1286
              #items: array:5 [
                0 => App\Models\Element {#1313 …30}
                1 => App\Models\Element {#1311 …30}
                2 => App\Models\Element {#1309 …30}
                3 => App\Models\Element {#1308 …30}
                4 => App\Models\Element {#1305 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598930"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598928"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1316
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598929
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-2-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1183}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1204}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1202}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1323}
            "content" => Illuminate\Database\Eloquent\Collection {#1286}
            "next" => array:2 [
              "refs" => "598930"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598928"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1316}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
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          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        5 => App\Models\Task {#1252
          #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" => 598930
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-2-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1330
              #items: array:1 [
                0 => App\Models\Term {#1068}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1317
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1320
              #items: array:1 [
                0 => App\Models\Branch {#1333 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1319
              #items: array:3 [
                0 => App\Models\Branch {#1333 …30}
                1 => App\Models\Branch {#1337 …30}
                2 => App\Models\Branch {#1341 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1287
              #items: array:5 [
                0 => App\Models\Element {#1297 …30}
                1 => App\Models\Element {#1295 …30}
                2 => App\Models\Element {#1293 …30}
                3 => App\Models\Element {#1289 …30}
                4 => App\Models\Element {#1256 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598931"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598929"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1299
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598930
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-2-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1330}
            "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 {#1317}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1320}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1319}
            "content" => Illuminate\Database\Eloquent\Collection {#1287}
            "next" => array:2 [
              "refs" => "598931"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598929"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1299}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        6 => App\Models\Task {#1290
          #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" => 598931
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-3-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1318
              #items: array:1 [
                0 => App\Models\Term {#1068}
              ]
              #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 {#1298
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1302
              #items: array:1 [
                0 => App\Models\Branch {#1333 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1325
              #items: array:3 [
                0 => App\Models\Branch {#1352 …30}
                1 => App\Models\Branch {#1356 …30}
                2 => App\Models\Branch {#1360 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1254
              #items: array:4 [
                0 => App\Models\Element {#1226 …30}
                1 => App\Models\Element {#1229 …30}
                2 => App\Models\Element {#1230 …30}
                3 => App\Models\Element {#1231 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598932"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598930"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1224
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598931
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-3-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1318}
            "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 {#1298}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1302}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1325}
            "content" => Illuminate\Database\Eloquent\Collection {#1254}
            "next" => array:2 [
              "refs" => "598932"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598930"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1224}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        7 => App\Models\Task {#1199
          #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" => 598932
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-3-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1349
              #items: array:1 [
                0 => App\Models\Term {#1068}
              ]
              #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 {#1223
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1198
              #items: array:1 [
                0 => App\Models\Branch {#1352 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1225
              #items: array:3 [
                0 => App\Models\Branch {#1352 …30}
                1 => App\Models\Branch {#1356 …30}
                2 => App\Models\Branch {#1360 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1200
              #items: array:5 [
                0 => App\Models\Element {#1244 …30}
                1 => App\Models\Element {#1245 …30}
                2 => App\Models\Element {#1247 …30}
                3 => App\Models\Element {#1250 …30}
                4 => App\Models\Element {#1322 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598933"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598931"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1241
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598932
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-3-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1349}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1223}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1198}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1225}
            "content" => Illuminate\Database\Eloquent\Collection {#1200}
            "next" => array:2 [
              "refs" => "598933"
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            "previous" => array:2 [
              "refs" => "598931"
              "type" => "task"
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            "book" => Illuminate\Database\Eloquent\Collection {#1241}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
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          ]
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            0 => "*"
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        }
        8 => App\Models\Task {#1203
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #attributes: array:24 [
            "id" => 598933
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            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-3-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1329
              #items: array:1 [
                0 => App\Models\Term {#1068}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1239
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1238
              #items: array:1 [
                0 => App\Models\Branch {#1352 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1240
              #items: array:3 [
                0 => App\Models\Branch {#1352 …30}
                1 => App\Models\Branch {#1356 …30}
                2 => App\Models\Branch {#1360 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1331
              #items: array:5 [
                0 => App\Models\Element {#1260 …30}
                1 => App\Models\Element {#1262 …30}
                2 => App\Models\Element {#1263 …30}
                3 => App\Models\Element {#1267 …30}
                4 => App\Models\Element {#1269 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598934"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598932"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1257
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598933
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-3-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1329}
            "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 {#1239}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1238}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1240}
            "content" => Illuminate\Database\Eloquent\Collection {#1331}
            "next" => array:2 [
              "refs" => "598934"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598932"
              "type" => "task"
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            "book" => Illuminate\Database\Eloquent\Collection {#1257}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
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          ]
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          #visible: []
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            0 => "*"
          ]
        }
        9 => App\Models\Task {#1237
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
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          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 598934
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            "updated_at" => null
            "field_page_start" => "54"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-3-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1242
              #items: array:1 [
                0 => App\Models\Term {#1068}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
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            "field_description_top" => null
            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1304
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1253
              #items: array:1 [
                0 => App\Models\Branch {#1352 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1301
              #items: array:3 [
                0 => App\Models\Branch {#1352 …30}
                1 => App\Models\Branch {#1356 …30}
                2 => App\Models\Branch {#1360 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1235
              #items: array:5 [
                0 => App\Models\Element {#1276 …30}
                1 => App\Models\Element {#1279 …30}
                2 => App\Models\Element {#1280 …30}
                3 => App\Models\Element {#1282 …30}
                4 => App\Models\Element {#1285 …30}
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "598935"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598933"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1277
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 598934
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "54"
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            "field_url" => "/8-klass/fizika/peryshkin-uchebnik/14-3-4"
            "field_display_title" => "4"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1242}
            "field_metatags_title" => null
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            "field_h1" => null
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            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1304}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1253}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1301}
            "content" => Illuminate\Database\Eloquent\Collection {#1235}
            "next" => array:2 [
              "refs" => "598935"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "598933"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1277}
            "page" => array:2 [
              "refs" => "991418"
              "type" => "book_page"
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          ]
          #changes: []
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            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
  ]
  #original: array:21 [
    "id" => 991418
    "created_at" => "2026-04-08 17:28:58"
    "updated_at" => null
    "field_page_start" => "54"
    "field_url" => "/8-klass/fizika/peryshkin-uchebnik/page-54"
    "field_display_title" => "54"
    "field_folder" => "1"
    "field_image_name" => "54"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1039}
    "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 {#1037}
    "content" => Illuminate\Database\Eloquent\Collection {#1048}
    "next" => array:2 [
      "refs" => "991419"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "991417"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1041}
  ]
  #changes: []
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  #attributeCastCache: []
  #dateFormat: null
  #appends: []
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  #observables: []
  #relations: []
  #touches: []
  +timestamps: true
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  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Физика, 8 класс Учебник, автор: Пёрышкин И М, издательство Просвещение, Москва, 2023, белого цвета, страница 54
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