Номер 1.24, страница 6 - гдз по физике 8 класс задачник Артеменков, Ломаченков

Физика, 8 класс Задачник, авторы: Артеменков Денис Александрович, Ломаченков Иван Алексеевич, Панебратцев Юрий Анатольевич, издательство Просвещение, Москва, 2010

Авторы: Артеменков Д. А., Ломаченков И. А., Панебратцев Ю. А.

Тип: Задачник

Серия: сферы

Издательство: Просвещение

Год издания: 2010 - 2026

Цвет обложки: фиолетовый

ISBN: 978-5-09-046040-8

I. Внутренняя энергия - номер 1.24, страница 6.

App\Models\Task {#1030 // resources/views/models/task/default.blade.php
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            "text" => "<p><strong>Дано:</strong></p><p>Материал — алюминий<br>$m = 300 \text{ г}$<br>$t_1 = 0 \text{ °C}$<br>$t_2 = 100 \text{ °C}$<br>$c = 920 \frac{\text{Дж}}{\text{кг} \cdot \text{°C}}$ (удельная теплоемкость алюминия)</p><p><em>Перевод в систему СИ:</em><br>$m = 300 \text{ г} = 0.3 \text{ кг}$</p><p><strong>Найти:</strong></p><p>$\text{Q}$ — ?</p><p><strong>Решение:</strong></p><p>Количество теплоты, необходимое для нагревания тела без изменения его агрегатного состояния, определяется по формуле:</p><p>$Q = c \cdot m \cdot (t_2 - t_1)$</p><p>где $\text{c}$ — удельная теплоемкость вещества, $\text{m}$ — масса тела, а $(t_2 - t_1)$ — разность конечной и начальной температур.</p><p>Сначала вычислим количество теплоты в джоулях (Дж), подставив в формулу значения в системе СИ.</p><p>$Q = 920 \frac{\text{Дж}}{\text{кг} \cdot \text{°C}} \cdot 0.3 \text{ кг} \cdot (100 \text{ °C} - 0 \text{ °C})$</p><p>$Q = 920 \cdot 0.3 \cdot 100 \text{ Дж} = 27600 \text{ Дж}$</p><p>Теперь переведем полученное значение в калории (кал). Для этого воспользуемся соотношением: $1 \text{ кал} \approx 4.1868 \text{ Дж}$.</p><p>$Q = \frac{27600 \text{ Дж}}{4.1868 \text{ Дж/кал}} \approx 6591.52 \text{ кал}$</p><p>Округлим результат до целого значения.</p><p>$Q \approx 6592 \text{ кал}$</p><p><strong>Ответ:</strong> необходимое количество теплоты составляет $27600 \text{ Дж}$ или приблизительно $6592 \text{ кал}$.</p>"
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            "text" => "<p><strong>Дано:</strong></p><p>Материал — алюминий<br>$m = 300 \text{ г}$<br>$t_1 = 0 \text{ °C}$<br>$t_2 = 100 \text{ °C}$<br>$c = 920 \frac{\text{Дж}}{\text{кг} \cdot \text{°C}}$ (удельная теплоемкость алюминия)</p><p><em>Перевод в систему СИ:</em><br>$m = 300 \text{ г} = 0.3 \text{ кг}$</p><p><strong>Найти:</strong></p><p>$\text{Q}$ — ?</p><p><strong>Решение:</strong></p><p>Количество теплоты, необходимое для нагревания тела без изменения его агрегатного состояния, определяется по формуле:</p><p>$Q = c \cdot m \cdot (t_2 - t_1)$</p><p>где $\text{c}$ — удельная теплоемкость вещества, $\text{m}$ — масса тела, а $(t_2 - t_1)$ — разность конечной и начальной температур.</p><p>Сначала вычислим количество теплоты в джоулях (Дж), подставив в формулу значения в системе СИ.</p><p>$Q = 920 \frac{\text{Дж}}{\text{кг} \cdot \text{°C}} \cdot 0.3 \text{ кг} \cdot (100 \text{ °C} - 0 \text{ °C})$</p><p>$Q = 920 \cdot 0.3 \cdot 100 \text{ Дж} = 27600 \text{ Дж}$</p><p>Теперь переведем полученное значение в калории (кал). Для этого воспользуемся соотношением: $1 \text{ кал} \approx 4.1868 \text{ Дж}$.</p><p>$Q = \frac{27600 \text{ Дж}}{4.1868 \text{ Дж/кал}} \approx 6591.52 \text{ кал}$</p><p>Округлим результат до целого значения.</p><p>$Q \approx 6592 \text{ кал}$</p><p><strong>Ответ:</strong> необходимое количество теплоты составляет $27600 \text{ Дж}$ или приблизительно $6592 \text{ кал}$.</p>"
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                    0 => "*"
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            "field_city" => Illuminate\Database\Eloquent\Collection {#1107
              #items: array:1 [
                0 => App\Models\Term {#1108
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                  #table: "terms"
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                  #attributes: array:6 [
                    "id" => 15
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    ]
                    "field_translit" => "moskva"
                  ]
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                    0 => "*"
                  ]
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              ]
              #escapeWhenCastingToString: false
            }
            "field_series" => Illuminate\Database\Eloquent\Collection {#1109
              #items: array:1 [
                0 => App\Models\Term {#1110
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #escapeWhenCastingToString: false
                  #attributes: array:8 [
                    "id" => 4795
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "сферы"
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                    "field_foreign_lang_series" => null
                    "field_transcription_eng" => null
                    "field_translit" => "sfery"
                  ]
                  #original: array:8 [
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "сферы"
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                    "field_translit" => "sfery"
                  ]
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                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1111
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1112
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1113
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_publication_number" => "5"
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1114
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1115
              #items: array:1 [
                0 => App\Models\Term {#1101}
              ]
              #escapeWhenCastingToString: false
            }
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
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            "field_tasks_count" => "308"
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            "field_default_folder" => "/fizika_08/artemenkov-zd/"
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            "field_cover" => array:1 [
              0 => "/media/fizika_08/artemenkov-zd/covers/cover1.webp?ts=1760136860"
            ]
            "field_cover_alts" => array:1 [
              0 => ""
            ]
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              0 => array:4 [
                "path" => "/media/fizika_08/artemenkov-zd/covers/cover1.webp?ts=1760136860"
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              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1116
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1117
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1118
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/8-klass/fizika/artemenkov-zadachnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1119
              #items: array:1 [
                0 => App\Models\Term {#1120
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
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                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 48
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    ]
                    "field_translit" => "fioletovyy"
                  ]
                  #original: array:6 [
                    "id" => 48
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "фиолетовый"
                    "field_cases" => array:6 [
                      "field_accusative_case" => null
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                    ]
                    "field_translit" => "fioletovyy"
                  ]
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                    0 => "*"
                  ]
                }
              ]
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            "field_metatags_title" => null
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            "breadcrumbs" => array:3 [
              "class" => 379
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            ]
          ]
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            "id" => 1646
            "created_at" => "2026-04-10 13:58:26"
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            "field_subject" => Illuminate\Database\Eloquent\Collection {#1072}
            "field_class" => Illuminate\Database\Eloquent\Collection {#1082}
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1076}
            "field_author" => Illuminate\Database\Eloquent\Collection {#1077}
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1102}
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1103}
            "field_country" => Illuminate\Database\Eloquent\Collection {#1105}
            "field_city" => Illuminate\Database\Eloquent\Collection {#1107}
            "field_series" => Illuminate\Database\Eloquent\Collection {#1109}
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1111}
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1112}
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1113}
            "field_publication_number" => "5"
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1114}
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1115}
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2010"
            "field_publication_year_until" => null
            "field_part" => ""
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            "field_second_foreign_language" => null
            "field_for_whom" => "Учебное пособие для общеобразовательных организаций"
            "field_allowed" => null
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            "field_link_to_source" => null
            "field_tasks_count" => "308"
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            "field_default_folder" => "/fizika_08/artemenkov-zd/"
            "field_isbn" => "978-5-09-046040-8"
            "field_cover" => array:1 [
              0 => "/media/fizika_08/artemenkov-zd/covers/cover1.webp?ts=1760136860"
            ]
            "field_cover_alts" => array:1 [
              0 => ""
            ]
            "field_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/fizika_08/artemenkov-zd/covers/cover1.webp?ts=1760136860"
                "alt" => ""
                "width" => "1891"
                "height" => "2427"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1116}
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1117}
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1118}
            "field_url" => "/8-klass/fizika/artemenkov-zadachnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1119}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "breadcrumbs" => array:3 [
              "class" => 379
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            ]
          ]
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            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "page" => Illuminate\Database\Eloquent\Collection {#1128
      #items: array:1 [
        0 => App\Models\BookPage {#1127
          #connection: "mysql"
          #table: "book_pages"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #perPage: 15
          +exists: true
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          #escapeWhenCastingToString: false
          #attributes: array:21 [
            "id" => 1462303
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "6"
            "field_url" => "/8-klass/fizika/artemenkov-zadachnik/page-6"
            "field_display_title" => "6"
            "field_folder" => "1"
            "field_image_name" => "6"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1129
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1130
              #items: array:1 [
                0 => App\Models\Book {#1080}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#1131
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              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#1141
              #items: array:1 [
                0 => App\Models\Element {#1140
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 1753864
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#1142
                      #items: array:1 [ …1]
                      #escapeWhenCastingToString: false
                    }
                    "book_page" => array:2 [
                      "refs" => "1462303"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [ …5]
                    ]
                  ]
                  #original: array:6 [
                    "id" => 1753864
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#1142}
                    "book_page" => array:2 [
                      "refs" => "1462303"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [ …5]
                    ]
                  ]
                  #changes: []
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                  #attributeCastCache: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
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                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "1462304"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "1462302"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#1577
              #items: array:11 [
                0 => App\Models\Task {#1595
                  #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" => 1460073
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "6"
                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-21"
                    "field_display_title" => "1.21"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1596 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1597 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1598 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1599 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1601 …2}
                    "next" => array:2 [ …2]
                    "previous" => array:2 [ …2]
                    "book" => Illuminate\Database\Eloquent\Collection {#1607 …2}
                    "page" => array:2 [ …2]
                  ]
                  #original: array:24 [
                    "id" => 1460073
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "6"
                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-21"
                    "field_display_title" => "1.21"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1596 …2}
                    "field_metatags_title" => null
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1597 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1598 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1599 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1601 …2}
                    "next" => array:2 [ …2]
                    "previous" => array:2 [ …2]
                    "book" => Illuminate\Database\Eloquent\Collection {#1607 …2}
                    "page" => array:2 [ …2]
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                1 => App\Models\Task {#1602
                  #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" => 1460074
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "6"
                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-22"
                    "field_display_title" => "1.22"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1600 …2}
                    "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 {#1609 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1605 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1603 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1604 …2}
                    "next" => array:2 [ …2]
                    "previous" => array:2 [ …2]
                    "book" => Illuminate\Database\Eloquent\Collection {#1619 …2}
                    "page" => array:2 [ …2]
                  ]
                  #original: array:24 [
                    "id" => 1460074
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "6"
                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-22"
                    "field_display_title" => "1.22"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1600 …2}
                    "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 {#1609 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1605 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1603 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1604 …2}
                    "next" => array:2 [ …2]
                    "previous" => array:2 [ …2]
                    "book" => Illuminate\Database\Eloquent\Collection {#1619 …2}
                    "page" => array:2 [ …2]
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                2 => App\Models\Task {#1614
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                    "id" => 1460075
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1606 …2}
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1615 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1616 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#1631 …2}
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                    0 => "*"
                  ]
                }
                3 => App\Models\Task {#1626
                  #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" => 1460076
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-24"
                    "field_display_title" => "1.24"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1618 …2}
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1633 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1629 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1627 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1630 …2}
                    "next" => array:2 [ …2]
                    "previous" => array:2 [ …2]
                    "book" => Illuminate\Database\Eloquent\Collection {#1628 …2}
                    "page" => array:2 [ …2]
                  ]
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                    "id" => 1460076
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                    0 => "*"
                  ]
                }
                4 => App\Models\Task {#1638
                  #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" => 1460077
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-25"
                    "field_display_title" => "1.25"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1639 …2}
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1640 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1641 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1642 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1644 …2}
                    "next" => array:2 [ …2]
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                    "book" => Illuminate\Database\Eloquent\Collection {#1650 …2}
                    "page" => array:2 [ …2]
                  ]
                  #original: array:24 [
                    "id" => 1460077
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1642 …2}
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                    0 => "*"
                  ]
                }
                5 => App\Models\Task {#1645
                  #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" => 1460078
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-26"
                    "field_display_title" => "1.26"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1643 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1652 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1648 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1646 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1647 …2}
                    "next" => array:2 [ …2]
                    "previous" => array:2 [ …2]
                    "book" => Illuminate\Database\Eloquent\Collection {#1662 …2}
                    "page" => array:2 [ …2]
                  ]
                  #original: array:24 [
                    "id" => 1460078
                    "created_at" => "2026-04-10 13:58:26"
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                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-26"
                    "field_display_title" => "1.26"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1643 …2}
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                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1652 …2}
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1646 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1647 …2}
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                    "book" => Illuminate\Database\Eloquent\Collection {#1662 …2}
                    "page" => array:2 [ …2]
                  ]
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                  #hidden: []
                  #visible: []
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                    0 => "*"
                  ]
                }
                6 => App\Models\Task {#1657
                  #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" => 1460079
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "6"
                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-27"
                    "field_display_title" => "1.27"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1649 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1664 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1660 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1658 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1659 …2}
                    "next" => array:2 [ …2]
                    "previous" => array:2 [ …2]
                    "book" => Illuminate\Database\Eloquent\Collection {#1674 …2}
                    "page" => array:2 [ …2]
                  ]
                  #original: array:24 [
                    "id" => 1460079
                    "created_at" => "2026-04-10 13:58:26"
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                    "field_display_title" => "1.27"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1649 …2}
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                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1664 …2}
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1658 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1659 …2}
                    "next" => array:2 [ …2]
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                    "book" => Illuminate\Database\Eloquent\Collection {#1674 …2}
                    "page" => array:2 [ …2]
                  ]
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                7 => App\Models\Task {#1669
                  #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" => 1460080
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "6"
                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-28"
                    "field_display_title" => "1.28"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1661 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1676 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1672 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1670 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1695 …2}
                    "next" => array:2 [ …2]
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                    "book" => Illuminate\Database\Eloquent\Collection {#1697 …2}
                    "page" => array:2 [ …2]
                  ]
                  #original: array:24 [
                    "id" => 1460080
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                    "field_display_title" => "1.28"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1661 …2}
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1670 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1695 …2}
                    "next" => array:2 [ …2]
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                    "book" => Illuminate\Database\Eloquent\Collection {#1697 …2}
                    "page" => array:2 [ …2]
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                8 => App\Models\Task {#1696
                  #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" => 1460081
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "6"
                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-29"
                    "field_display_title" => "1.29"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1698 …2}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
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                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1699 …2}
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1700 …2}
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1701 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1718 …2}
                    "next" => array:2 [ …2]
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                    "book" => Illuminate\Database\Eloquent\Collection {#1720 …2}
                    "page" => array:2 [ …2]
                  ]
                  #original: array:24 [
                    "id" => 1460081
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-29"
                    "field_display_title" => "1.29"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#1698 …2}
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                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1699 …2}
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1701 …2}
                    "content" => Illuminate\Database\Eloquent\Collection {#1718 …2}
                    "next" => array:2 [ …2]
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                    "book" => Illuminate\Database\Eloquent\Collection {#1720 …2}
                    "page" => array:2 [ …2]
                  ]
                  #changes: []
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                  #hidden: []
                  #visible: []
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                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
                9 => App\Models\Task {#1719
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
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                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1460082
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "6"
                    "field_page_end" => null
                    "field_url" => "/8-klass/fizika/artemenkov-zadachnik/01-30"
                    "field_display_title" => "1.30"
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№1.24 (с. 6)
Условие. №1.24 (с. 6)
скриншот условия
Физика, 8 класс Задачник, авторы: Артеменков Денис Александрович, Ломаченков Иван Алексеевич, Панебратцев Юрий Анатольевич, издательство Просвещение, Москва, 2010, страница 6, номер 1.24, Условие

1.24 Какое количество теплоты необходимо для нагревания алюминиевой детали массой 300 г от 0 до 100 °С? Ответ выразите в джоулях и калориях.

Решение. №1.24 (с. 6)

Дано:

Материал — алюминий
$m = 300 \text{ г}$
$t_1 = 0 \text{ °C}$
$t_2 = 100 \text{ °C}$
$c = 920 \frac{\text{Дж}}{\text{кг} \cdot \text{°C}}$ (удельная теплоемкость алюминия)

Перевод в систему СИ:
$m = 300 \text{ г} = 0.3 \text{ кг}$

Найти:

$\text{Q}$ — ?

Решение:

Количество теплоты, необходимое для нагревания тела без изменения его агрегатного состояния, определяется по формуле:

$Q = c \cdot m \cdot (t_2 - t_1)$

где $\text{c}$ — удельная теплоемкость вещества, $\text{m}$ — масса тела, а $(t_2 - t_1)$ — разность конечной и начальной температур.

Сначала вычислим количество теплоты в джоулях (Дж), подставив в формулу значения в системе СИ.

$Q = 920 \frac{\text{Дж}}{\text{кг} \cdot \text{°C}} \cdot 0.3 \text{ кг} \cdot (100 \text{ °C} - 0 \text{ °C})$

$Q = 920 \cdot 0.3 \cdot 100 \text{ Дж} = 27600 \text{ Дж}$

Теперь переведем полученное значение в калории (кал). Для этого воспользуемся соотношением: $1 \text{ кал} \approx 4.1868 \text{ Дж}$.

$Q = \frac{27600 \text{ Дж}}{4.1868 \text{ Дж/кал}} \approx 6591.52 \text{ кал}$

Округлим результат до целого значения.

$Q \approx 6592 \text{ кал}$

Ответ: необходимое количество теплоты составляет $27600 \text{ Дж}$ или приблизительно $6592 \text{ кал}$.

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