Страница 77 - гдз по физике 8 класс учебник Пурышева, Важеевская

Физика, 8 класс Учебник, авторы: Пурышева Наталия Сергеевна, Важеевская Наталия Евгеньевна, издательство Просвещение, Москва, 2021, белого цвета

Авторы: Пурышева Н. С., Важеевская Н. Е.

Тип: Учебник

Издательство: Просвещение

Год издания: 2021 - 2026

Цвет обложки: белый

ISBN: 978-5-09-092354-5

Cтраница 77

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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  #withCount: []
  +preventsLazyLoading: false
  #perPage: 15
  +exists: true
  +wasRecentlyCreated: false
  #escapeWhenCastingToString: false
  #attributes: array:21 [
    "id" => 1497153
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "77"
    "field_url" => "/8-klass/fizika/purysheva-uchebnik/page-77"
    "field_display_title" => "77"
    "field_folder" => "1"
    "field_image_name" => "77"
    "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
          #with: []
          #withCount: []
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          #perPage: 15
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          #attributes: array:50 [
            "id" => 1274
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1009
              #items: array:1 [
                0 => App\Models\Term {#1007
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                    "field_foreign_lang_name" => null
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                    "field_subject_type" => "technical_subject"
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                    "updated_at" => null
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                    "field_cases" => array:6 [ …6]
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            "field_class" => Illuminate\Database\Eloquent\Collection {#1010
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                    "id" => 5457
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "created_at" => "2026-04-10 13:58:26"
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Наталия"
                    "field_patronymic" => "Сергеевна"
                    "field_surname_rp" => null
                  ]
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                    "id" => 5557
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Пурышева"
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                    "field_degree_rp" => null
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                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Наталия"
                    "field_patronymic" => "Сергеевна"
                    "field_surname_rp" => null
                  ]
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                    0 => "*"
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                }
                1 => App\Models\Term {#1016
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                    "id" => 3959
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_foreign_lang_patronymic" => null
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                    "field_name" => "Наталия"
                    "field_patronymic" => "Евгеньевна"
                    "field_surname_rp" => null
                  ]
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            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1017
              #items: []
              #escapeWhenCastingToString: false
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            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1018
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                0 => App\Models\Term {#1019
                  #connection: "mysql"
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                  ]
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                    "name" => "Россия"
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                    "field_translit" => "rossiya"
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            "field_series" => Illuminate\Database\Eloquent\Collection {#1024
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            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1026
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1009}
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            "field_for_whom" => "Учебное издание"
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              ]
            ]
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            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1032}
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1033}
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            "field_url" => "/8-klass/fizika/purysheva-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1035}
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    "content" => Illuminate\Database\Eloquent\Collection {#1048
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            "edition" => Illuminate\Database\Eloquent\Collection {#1058
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                0 => App\Models\Edition {#1057
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                    "id" => 6513
                    "created_at" => "2026-04-10 13:58:26"
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                    "field_solution_author" => "Автор"
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                  ]
                  #original: array:21 [
                    "id" => 6513
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                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
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                  ]
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                    0 => "*"
                  ]
                }
              ]
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            }
            "book_page" => array:2 [
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            "img" => array:1 [
              0 => array:5 [
                "name" => "77-1.jpg"
                "alt" => null
                "width" => "1971"
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            "edition" => Illuminate\Database\Eloquent\Collection {#1058}
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              ]
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        }
      ]
      #escapeWhenCastingToString: false
    }
    "next" => Illuminate\Database\Eloquent\Collection {#4844
      #items: array:1 [
        0 => App\Models\BookPage {#4843
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
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            "id" => 1497154
            "created_at" => "2026-04-10 13:58:26"
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            "field_display_title" => "78"
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            "content" => Illuminate\Database\Eloquent\Collection {#4910
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                0 => App\Models\Element {#4921
                  #connection: "mysql"
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                  #attributes: array:6 [
                    "id" => 1779903
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#4907 …2}
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                    "img" => array:1 [ …1]
                  ]
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                    "edition" => Illuminate\Database\Eloquent\Collection {#4907 …2}
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                    0 => "*"
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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 {#4847
              #items: array:7 [
                0 => App\Models\Task {#4932
                  #connection: "mysql"
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                  #attributes: array:24 [
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#4933 …2}
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                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#4899 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#4891 …2}
                    "page" => array:2 [ …2]
                  ]
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                    0 => "*"
                  ]
                }
                1 => App\Models\Task {#4864
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #attributes: array:24 [
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_display_title" => "5"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#4861 …2}
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#4889 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#4894 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#4865 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#4893 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#4878 …2}
                    "page" => array:2 [ …2]
                  ]
                  #original: array:24 [
                    "id" => 1496565
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_display_title" => "5"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#4861 …2}
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                    0 => "*"
                  ]
                }
                2 => App\Models\Task {#4884
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                  #attributes: array:24 [
                    "id" => 1496566
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_url" => "/8-klass/fizika/purysheva-uchebnik/18zad-1"
                    "field_display_title" => "1"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#4892 …2}
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                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#4876 …2}
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                  ]
                  #original: array:24 [
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_page_start" => "78"
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                    "field_url" => "/8-klass/fizika/purysheva-uchebnik/18zad-1"
                    "field_display_title" => "1"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#4892 …2}
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                    0 => "*"
                  ]
                }
                3 => App\Models\Task {#5008
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
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                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1496567
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "78"
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                    "field_url" => "/8-klass/fizika/purysheva-uchebnik/18zad-2"
                    "field_display_title" => "2"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5022 …2}
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                4 => App\Models\Task {#5001
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                5 => App\Models\Task {#4988
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            "field_h1" => null
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            "field_match" => null
            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1061
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1075
              #items: array:1 [
                0 => App\Models\Branch {#1074
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
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                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
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                  #original: array:24 [ …24]
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1109
              #items: array:3 [
                0 => App\Models\Branch {#1119
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                  +preventsLazyLoading: false
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                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [ …24]
                  #original: array:24 [ …24]
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                  #attributeCastCache: []
                  #dateFormat: null
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Branch {#1123
                  #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 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #relations: []
                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                2 => App\Models\Branch {#1128
                  #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 [ …24]
                  #original: array:24 [ …24]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
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                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1067
              #items: array:2 [
                0 => App\Models\Element {#1101
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:7 [ …7]
                  #original: array:7 [ …7]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
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                  #observables: []
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                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Element {#1100
                  #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:6 [ …6]
                  #original: array:6 [ …6]
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                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
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                  #hidden: []
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                  #guarded: array:1 [ …1]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1496562"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1496560"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1104
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1497153"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1496561
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "77"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/purysheva-uchebnik/19vopr-1"
            "field_display_title" => "1"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1064}
            "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 {#1061}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1075}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1109}
            "content" => Illuminate\Database\Eloquent\Collection {#1067}
            "next" => array:2 [
              "refs" => "1496562"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1496560"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1104}
            "page" => array:2 [
              "refs" => "1497153"
              "type" => "book_page"
            ]
          ]
          #changes: []
          #casts: []
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          #attributeCastCache: []
          #dateFormat: null
          #appends: []
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          #touches: []
          +timestamps: true
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          #hidden: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Task {#1107
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
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          #withCount: []
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          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1496562
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            "updated_at" => null
            "field_page_start" => "77"
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            "field_url" => "/8-klass/fizika/purysheva-uchebnik/19vopr-2"
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1102
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            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1105
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                0 => App\Models\Branch {#1119}
              ]
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            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1071
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                2 => App\Models\Branch {#1128}
              ]
              #escapeWhenCastingToString: false
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            "content" => Illuminate\Database\Eloquent\Collection {#1068
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                0 => App\Models\Element {#1082
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                }
                1 => App\Models\Element {#1083
                  #connection: "mysql"
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                  #attributes: array:6 [ …6]
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
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            ]
            "previous" => array:2 [
              "refs" => "1496561"
              "type" => "task"
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            "book" => Illuminate\Database\Eloquent\Collection {#1093
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                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1497153"
              "type" => "book_page"
            ]
          ]
          #original: array:24 [
            "id" => 1496562
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "77"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/purysheva-uchebnik/19vopr-2"
            "field_display_title" => "2"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1116}
            "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 {#1102}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1105}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1071}
            "content" => Illuminate\Database\Eloquent\Collection {#1068}
            "next" => array:2 [
              "refs" => "1496563"
              "type" => "task"
            ]
            "previous" => array:2 [
              "refs" => "1496561"
              "type" => "task"
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1093}
            "page" => array:2 [
              "refs" => "1497153"
              "type" => "book_page"
            ]
          ]
          #changes: []
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          #hidden: []
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          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Task {#1098
          #connection: "mysql"
          #table: "tasks"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1496563
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "77"
            "field_page_end" => null
            "field_url" => "/8-klass/fizika/purysheva-uchebnik/19vopr-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1106
              #items: array:1 [
                0 => App\Models\Term {#1055}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1084
              #items: []
              #escapeWhenCastingToString: false
            }
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1092
              #items: array:1 [
                0 => App\Models\Branch {#1119}
              ]
              #escapeWhenCastingToString: false
            }
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1096
              #items: array:3 [
                0 => App\Models\Branch {#1119}
                1 => App\Models\Branch {#1123}
                2 => App\Models\Branch {#1128}
              ]
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1097
              #items: array:2 [
                0 => App\Models\Element {#1114
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                  #attributes: array:7 [ …7]
                  #original: array:7 [ …7]
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                  +timestamps: true
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                  #guarded: array:1 [ …1]
                }
                1 => App\Models\Element {#1132
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #with: []
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
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              "refs" => "1496562"
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            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1117
              #items: array:1 [
                0 => App\Models\Book {#1006}
              ]
              #escapeWhenCastingToString: false
            }
            "page" => array:2 [
              "refs" => "1497153"
              "type" => "book_page"
            ]
          ]
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            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
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            "field_page_end" => null
            "field_url" => "/8-klass/fizika/purysheva-uchebnik/19vopr-3"
            "field_display_title" => "3"
            "field_outside_task" => null
            "field_task_type" => Illuminate\Database\Eloquent\Collection {#1106}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "field_description_bottom" => null
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            "breadcrumbs" => []
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1084}
            "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1092}
            "parent_branches" => Illuminate\Database\Eloquent\Collection {#1096}
            "content" => Illuminate\Database\Eloquent\Collection {#1097}
            "next" => array:2 [
              "refs" => "1496564"
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            ]
            "previous" => array:2 [
              "refs" => "1496562"
              "type" => "task"
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            "book" => Illuminate\Database\Eloquent\Collection {#1117}
            "page" => array:2 [
              "refs" => "1497153"
              "type" => "book_page"
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          ]
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      ]
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  ]
  #original: array:21 [
    "id" => 1497153
    "created_at" => "2026-04-10 13:58:26"
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    "field_page_start" => "77"
    "field_url" => "/8-klass/fizika/purysheva-uchebnik/page-77"
    "field_display_title" => "77"
    "field_folder" => "1"
    "field_image_name" => "77"
    "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
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    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1037}
    "content" => Illuminate\Database\Eloquent\Collection {#1048}
    "next" => array:2 [
      "refs" => "1497154"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1497152"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1038}
  ]
  #changes: []
  #casts: []
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  #attributeCastCache: []
  #dateFormat: null
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  #observables: []
  #relations: []
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  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Физика, 8 класс Учебник, авторы: Пурышева Наталия Сергеевна, Важеевская Наталия Евгеньевна, издательство Просвещение, Москва, 2021, белого цвета, страница 77
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