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Страница 66 - гдз по физике 9 класс учебник Кабардин
Авторы: Кабардин О. Ф.
Тип: Учебник
Серия: архимед
Издательство: Просвещение
Год издания: 2014 - 2026
Цвет обложки: радужный
ISBN: 978-5-09-034177-6
Популярные ГДЗ в 9 классе
Cтраница 66
App\Models\BookPage {#1003 // resources/views/models/book_page/default.blade.php #connection: "mysql" #table: "book_pages" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 1717372 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "66" "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-66" "field_display_title" => "66" "field_folder" => "1" "field_image_name" => "66" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008 #items: [] #escapeWhenCastingToString: false } "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1038 #items: array:1 [ 0 => App\Models\Book {#1006 #connection: "mysql" #table: "books" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:50 [ "id" => 862 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_tree_default_status" => "tasks" "field_pages_status" => null "field_subject" => Illuminate\Database\Eloquent\Collection {#1009 #items: array:1 [ 0 => App\Models\Term {#1007 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:10 [ "id" => 6493 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Физика" "field_abbreviated_name" => null "field_cases" => array:6 [ "field_accusative_case" => "физику" "field_creative_case" => "физикой" "field_dative_case" => "физике" "field_genitive_case" => "физики" "field_nominative_case" => "физика" "field_prepositional_case" => "физике" ] "field_foreign_lang_name" => null "field_short_name" => null "field_subject_type" => "technical_subject" "field_translit" => "fizika" ] #original: array:10 [ "id" => 6493 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Физика" "field_abbreviated_name" => null "field_cases" => array:6 [ "field_accusative_case" => "физику" "field_creative_case" => "физикой" "field_dative_case" => "физике" "field_genitive_case" => "физики" …2 ] "field_foreign_lang_name" => null "field_short_name" => null "field_subject_type" => "technical_subject" "field_translit" => "fizika" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_class" => Illuminate\Database\Eloquent\Collection {#1010 #items: array:1 [ 0 => App\Models\Term {#1011 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 5458 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "9" "field_cases" => array:6 [ …6] "field_translit" => "devjatyj" ] #original: array:6 [ "id" => 5458 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "9" "field_cases" => array:6 [ …6] "field_translit" => "devjatyj" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_publisher" => Illuminate\Database\Eloquent\Collection {#1012 #items: array:1 [ 0 => App\Models\Term {#1013 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 5153 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Просвещение" "field_cases" => null "field_translit" => "prosveschenie" ] #original: array:6 [ "id" => 5153 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Просвещение" "field_cases" => null "field_translit" => "prosveschenie" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_author" => Illuminate\Database\Eloquent\Collection {#1014 #items: array:1 [ 0 => App\Models\Term {#1015 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:12 [ "id" => 4514 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Кабардин" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Олег" "field_patronymic" => "Фёдорович" "field_surname_rp" => "Кабардина" ] #original: array:12 [ "id" => 4514 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Кабардин" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Олег" "field_patronymic" => "Фёдорович" "field_surname_rp" => "Кабардина" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1016 #items: [] #escapeWhenCastingToString: false } "field_book_type" => Illuminate\Database\Eloquent\Collection {#1017 #items: array:1 [ 0 => App\Models\Term {#1018 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:10 [ "id" => 6671 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Учебник" "field_book_type_foreign" => null "field_cases" => array:6 [ …6] "field_plural_form" => null "field_short_name" => null "field_short_name_foreign" => null "field_translit" => "uchebnik" ] #original: array:10 [ "id" => 6671 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Учебник" "field_book_type_foreign" => null "field_cases" => array:6 [ …6] "field_plural_form" => null "field_short_name" => null "field_short_name_foreign" => null "field_translit" => "uchebnik" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_country" => Illuminate\Database\Eloquent\Collection {#1019 #items: array:1 [ 0 => App\Models\Term {#1020 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 9 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Россия" "field_cases" => array:6 [ …6] "field_translit" => "rossiya" ] #original: array:6 [ "id" => 9 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Россия" "field_cases" => array:6 [ …6] "field_translit" => "rossiya" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_city" => Illuminate\Database\Eloquent\Collection {#1021 #items: array:1 [ 0 => App\Models\Term {#1022 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 15 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Москва" "field_cases" => array:6 [ …6] "field_translit" => "moskva" ] #original: array:6 [ "id" => 15 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "Москва" "field_cases" => array:6 [ …6] "field_translit" => "moskva" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_series" => Illuminate\Database\Eloquent\Collection {#1023 #items: array:1 [ 0 => App\Models\Term {#1024 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:8 [ "id" => 4702 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "архимед" "field_cases" => null "field_foreign_lang_series" => null "field_transcription_eng" => null "field_translit" => "arkhimed" ] #original: array:8 [ "id" => 4702 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "архимед" "field_cases" => null "field_foreign_lang_series" => null "field_transcription_eng" => null "field_translit" => "arkhimed" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_umk" => Illuminate\Database\Eloquent\Collection {#1025 #items: [] #escapeWhenCastingToString: false } "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1026 #items: [] #escapeWhenCastingToString: false } "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1027 #items: array:1 [ 0 => App\Models\Term {#1028 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:10 [ "id" => 6706 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "ФГОС (старый)" "field_cases" => array:6 [ …6] "field_color" => null "field_end_year" => "2022" "field_start_year" => "2019" "field_translit" => "fgos-old" "field_type" => null ] #original: array:10 [ "id" => 6706 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "ФГОС (старый)" "field_cases" => array:6 [ …6] "field_color" => null "field_end_year" => "2022" "field_start_year" => "2019" "field_translit" => "fgos-old" "field_type" => null ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1029 #items: [] #escapeWhenCastingToString: false } "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1030 #items: [] #escapeWhenCastingToString: false } "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2014" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для общеобразовательных организаций" "field_allowed" => null "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "471" "field_priority" => null "field_default_folder" => "/fizika_09/kabardin-u/" "field_isbn" => "978-5-09-034177-6" "field_cover" => array:1 [ 0 => "/media/fizika_09/kabardin-u/covers/cover1.webp?ts=1763648103" ] "field_cover_alts" => array:1 [ 0 => "" ] "field_covers" => array:1 [ 0 => array:4 [ "path" => "/media/fizika_09/kabardin-u/covers/cover1.webp?ts=1763648103" "alt" => "" "width" => "2286" "height" => "3086" ] ] "field_popular_book" => "0" "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1031 #items: [] #escapeWhenCastingToString: false } "field_new_book" => Illuminate\Database\Eloquent\Collection {#1032 #items: [] #escapeWhenCastingToString: false } "field_old_book" => Illuminate\Database\Eloquent\Collection {#1033 #items: [] #escapeWhenCastingToString: false } "field_url" => "/9-klass/fizika/kabardin-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1034 #items: array:1 [ 0 => App\Models\Term {#1035 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 55 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "радужный" "field_cases" => array:6 [ …6] "field_translit" => "raduzhnyy" ] #original: array:6 [ "id" => 55 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "name" => "радужный" "field_cases" => array:6 [ …6] "field_translit" => "raduzhnyy" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "breadcrumbs" => array:3 [ "class" => 380 "subject" => 556 "class_subject" => 493 ] ] #original: array:50 [ "id" => 862 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_tree_default_status" => "tasks" "field_pages_status" => null "field_subject" => Illuminate\Database\Eloquent\Collection {#1009} "field_class" => Illuminate\Database\Eloquent\Collection {#1010} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1012} "field_author" => Illuminate\Database\Eloquent\Collection {#1014} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1016} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1017} "field_country" => Illuminate\Database\Eloquent\Collection {#1019} "field_city" => Illuminate\Database\Eloquent\Collection {#1021} "field_series" => Illuminate\Database\Eloquent\Collection {#1023} "field_umk" => Illuminate\Database\Eloquent\Collection {#1025} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1026} "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1027} "field_publication_number" => null "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1029} "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1030} "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2014" "field_publication_year_until" => null "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для общеобразовательных организаций" "field_allowed" => null "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "471" "field_priority" => null "field_default_folder" => "/fizika_09/kabardin-u/" "field_isbn" => "978-5-09-034177-6" "field_cover" => array:1 [ 0 => "/media/fizika_09/kabardin-u/covers/cover1.webp?ts=1763648103" ] "field_cover_alts" => array:1 [ 0 => "" ] "field_covers" => array:1 [ 0 => array:4 [ "path" => "/media/fizika_09/kabardin-u/covers/cover1.webp?ts=1763648103" "alt" => "" "width" => "2286" "height" => "3086" ] ] "field_popular_book" => "0" "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1031} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1032} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1033} "field_url" => "/9-klass/fizika/kabardin-uchebnik" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1034} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "breadcrumbs" => array:3 [ "class" => 380 "subject" => 556 "class_subject" => 493 ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#1036 #items: [] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#1047 #items: array:1 [ 0 => App\Models\Element {#1046 #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" => 1859910 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1056 #items: array:1 [ 0 => App\Models\Edition {#1048 #connection: "mysql" #table: "editions" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 7243 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Условие" "field_order" => "1" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1050 …2} "field_content_type" => "free" "field_content_mode" => "text, image" "field_page_content_mode" => "image" "field_content_text_checked" => "0" "field_page_content_text_checked" => "0" "field_solution_author" => "Автор" "field_moderator" => "stas" "field_edition_type" => "statement" "field_root_dir" => "0-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1051 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1052 …2} "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1053 …2} "field_content_source" => null ] #original: array:21 [ "id" => 7243 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "title" => "Условие" "field_order" => "1" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1050 …2} "field_content_type" => "free" "field_content_mode" => "text, image" "field_page_content_mode" => "image" "field_content_text_checked" => "0" "field_page_content_text_checked" => "0" "field_solution_author" => "Автор" "field_moderator" => "stas" "field_edition_type" => "statement" "field_root_dir" => "0-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1051 …2} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1052 …2} "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1053 …2} "field_content_source" => null ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "book_page" => array:2 [ "refs" => "1717372" "type" => "book_page" ] "img" => array:1 [ 0 => array:5 [ "name" => "66-1.jpg" "alt" => null "width" => "2267" "height" => 3103 "path" => "/media/fizika_09/kabardin-u/0-1/66-1.webp?ts=1763725638" ] ] ] #original: array:6 [ "id" => 1859910 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1056} "book_page" => array:2 [ "refs" => "1717372" "type" => "book_page" ] "img" => array:1 [ 0 => array:5 [ "name" => "66-1.jpg" "alt" => null "width" => "2267" "height" => 3103 "path" => "/media/fizika_09/kabardin-u/0-1/66-1.webp?ts=1763725638" ] ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => Illuminate\Database\Eloquent\Collection {#5991 #items: array:1 [ 0 => App\Models\BookPage {#5992 #connection: "mysql" #table: "book_pages" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 1717373 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-67" "field_display_title" => "67" "field_folder" => "1" "field_image_name" => "67" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#6006 #items: [] #escapeWhenCastingToString: false } "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#6005 #items: array:1 [ 0 => App\Models\Book {#1006} ] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#6004 #items: [] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#6022 #items: array:1 [ 0 => App\Models\Element {#6033 #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" => 1859911 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#6024 …2} "book_page" => array:2 [ …2] "img" => array:1 [ …1] ] #original: array:6 [ "id" => 1859911 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#6024 …2} "book_page" => array:2 [ …2] "img" => array:1 [ …1] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => array:2 [ "refs" => "1717374" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1717372" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#6003 #items: array:4 [ 0 => App\Models\Task {#6092 #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" => 1717029 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-5" "field_display_title" => "14.5" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6094 …2} "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 {#6090 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6088 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6091 …2} "content" => Illuminate\Database\Eloquent\Collection {#6117 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6109 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717029 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-5" "field_display_title" => "14.5" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6094 …2} "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 {#6090 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6088 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6091 …2} "content" => Illuminate\Database\Eloquent\Collection {#6117 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6109 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 1 => App\Models\Task {#6110 #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" => 1717030 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-6" "field_display_title" => "14.6" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6089 …2} "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 {#6113 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6111 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6114 …2} "content" => Illuminate\Database\Eloquent\Collection {#6127 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6119 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717030 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-6" "field_display_title" => "14.6" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6089 …2} "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 {#6113 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6111 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6114 …2} "content" => Illuminate\Database\Eloquent\Collection {#6127 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6119 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 2 => App\Models\Task {#6120 #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" => 1717031 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-7" "field_display_title" => "14.7" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6112 …2} "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 {#6123 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6121 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6124 …2} "content" => Illuminate\Database\Eloquent\Collection {#6137 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6129 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717031 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-7" "field_display_title" => "14.7" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6112 …2} "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 {#6123 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6121 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6124 …2} "content" => Illuminate\Database\Eloquent\Collection {#6137 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6129 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 3 => App\Models\Task {#6130 #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" => 1717032 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-8" "field_display_title" => "14.8" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6122 …2} "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 {#6133 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6131 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6134 …2} "content" => Illuminate\Database\Eloquent\Collection {#6147 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6139 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717032 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-8" "field_display_title" => "14.8" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6122 …2} "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 {#6133 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6131 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6134 …2} "content" => Illuminate\Database\Eloquent\Collection {#6147 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6139 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } ] #original: array:21 [ "id" => 1717373 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "67" "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-67" "field_display_title" => "67" "field_folder" => "1" "field_image_name" => "67" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#6006} "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#6005} "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 {#6004} "content" => Illuminate\Database\Eloquent\Collection {#6022} "next" => array:2 [ "refs" => "1717374" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1717372" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#6003} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "previous" => Illuminate\Database\Eloquent\Collection {#5986 #items: array:1 [ 0 => App\Models\BookPage {#5985 #connection: "mysql" #table: "book_pages" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 1717371 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-65" "field_display_title" => "65" "field_folder" => "1" "field_image_name" => "65" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5987 #items: [] #escapeWhenCastingToString: false } "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5988 #items: array:1 [ 0 => App\Models\Book {#1006} ] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#5989 #items: [] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#5999 #items: array:1 [ 0 => App\Models\Element {#5998 #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" => 1859909 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#6000 …2} "book_page" => array:2 [ …2] "img" => array:1 [ …1] ] #original: array:6 [ "id" => 1859909 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#6000 …2} "book_page" => array:2 [ …2] "img" => array:1 [ …1] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => array:2 [ "refs" => "1717372" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1717370" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#5990 #items: array:7 [ 0 => App\Models\Task {#6009 #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" => 1717021 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr65-1" "field_display_title" => "1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6013 …2} "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 {#6012 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6011 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6086 …2} "content" => Illuminate\Database\Eloquent\Collection {#6077 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6047 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717021 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr65-1" "field_display_title" => "1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6013 …2} "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 {#6012 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6011 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6086 …2} "content" => Illuminate\Database\Eloquent\Collection {#6077 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6047 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 1 => App\Models\Task {#6080 #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" => 1717022 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr65-2" "field_display_title" => "2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6093 …2} "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 {#6083 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6081 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6051 …2} "content" => Illuminate\Database\Eloquent\Collection {#6068 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6075 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717022 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr65-2" "field_display_title" => "2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6093 …2} "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 {#6083 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6081 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6051 …2} "content" => Illuminate\Database\Eloquent\Collection {#6068 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6075 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 2 => App\Models\Task {#6074 #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" => 1717023 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr65-3" "field_display_title" => "3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6084 …2} "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 {#6072 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6073 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6070 …2} "content" => Illuminate\Database\Eloquent\Collection {#6056 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6066 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717023 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/vopr65-3" "field_display_title" => "3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6084 …2} "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 {#6072 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6073 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6070 …2} "content" => Illuminate\Database\Eloquent\Collection {#6056 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6066 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 3 => App\Models\Task {#6063 #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" => 1717024 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-1" "field_display_title" => "14.1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6071 …2} "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 {#6062 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6064 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6060 …2} "content" => Illuminate\Database\Eloquent\Collection {#6014 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6054 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717024 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-1" "field_display_title" => "14.1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6071 …2} "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 {#6062 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6064 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6060 …2} "content" => Illuminate\Database\Eloquent\Collection {#6014 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6054 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 4 => App\Models\Task {#6055 #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" => 1717025 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-2" "field_display_title" => "14.2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6061 …2} "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 {#6082 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6052 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6050 …2} "content" => Illuminate\Database\Eloquent\Collection {#6039 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6015 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717025 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-2" "field_display_title" => "14.2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6061 …2} "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 {#6082 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6052 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6050 …2} "content" => Illuminate\Database\Eloquent\Collection {#6039 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6015 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 5 => App\Models\Task {#6017 #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" => 1717026 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-3" "field_display_title" => "14.3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6053 …2} "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 {#6043 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6044 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6042 …2} "content" => Illuminate\Database\Eloquent\Collection {#6030 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6038 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717026 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-3" "field_display_title" => "14.3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6053 …2} "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 {#6043 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6044 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6042 …2} "content" => Illuminate\Database\Eloquent\Collection {#6030 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6038 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 6 => App\Models\Task {#6036 #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" => 1717027 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-4" "field_display_title" => "14.4" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6045 …2} "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 {#6034 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6035 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6031 …2} "content" => Illuminate\Database\Eloquent\Collection {#6018 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6028 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1717027 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/zad14-4" "field_display_title" => "14.4" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#6045 …2} "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 {#6034 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#6035 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#6031 …2} "content" => Illuminate\Database\Eloquent\Collection {#6018 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#6028 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } ] #original: array:21 [ "id" => 1717371 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "65" "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-65" "field_display_title" => "65" "field_folder" => "1" "field_image_name" => "65" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5987} "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5988} "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 {#5989} "content" => Illuminate\Database\Eloquent\Collection {#5999} "next" => array:2 [ "refs" => "1717372" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1717370" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#5990} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "tasks" => Illuminate\Database\Eloquent\Collection {#1057 #items: array:1 [ 0 => App\Models\Task {#1055 #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" => 1717028 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "66" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/expzad14-1" "field_display_title" => "Экспериментальное задание 14.1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1058 #items: [] #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 {#1059 #items: [] #escapeWhenCastingToString: false } "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1095 #items: array:1 [ 0 => App\Models\Branch {#1060 #connection: "mysql" #table: "branches" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1716753 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Законы сохранения" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1062 …2} "field_page_start" => "60" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1061 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1092 …2} ] #original: array:24 [ "id" => 1716753 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Законы сохранения" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1062 …2} "field_page_start" => "60" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1061 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1092 …2} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "parent_branches" => Illuminate\Database\Eloquent\Collection {#1208 #items: array:3 [ 0 => App\Models\Branch {#1093 #connection: "mysql" #table: "branches" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1716753 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Законы сохранения" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1096 …2} "field_page_start" => "60" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1094 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1126 …2} ] #original: array:24 [ "id" => 1716753 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Законы сохранения" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1096 …2} "field_page_start" => "60" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1094 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1126 …2} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 1 => App\Models\Branch {#1127 #connection: "mysql" #table: "branches" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1716759 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Кинетическая энергия" "field_branch_order" => "14" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1128 …2} "field_page_start" => "64" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1130 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1160 …2} ] #original: array:24 [ "id" => 1716759 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Кинетическая энергия" "field_branch_order" => "14" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1128 …2} "field_page_start" => "64" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1130 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1160 …2} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 2 => App\Models\Branch {#1165 #connection: "mysql" #table: "branches" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1716761 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Задачи" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1166 …2} "field_page_start" => "65" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1167 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1197 …2} ] #original: array:24 [ "id" => 1716761 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_display_title" => "Задачи" "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1166 …2} "field_page_start" => "65" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "field_branch_covers" => [] "book" => Illuminate\Database\Eloquent\Collection {#1167 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1197 …2} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#1217 #items: array:1 [ 0 => App\Models\Element {#1216 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:7 [ "id" => 1859384 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1218 …2} "task" => array:2 [ …2] "text" => "<p><strong>Экспериментальное задание 14.1</strong></p><p><strong>Работаем в группе</strong></p><p><strong>Определение кинетической энергии тела</strong></p><p><i>Оборудование:</i> два штатива, два шара разной массы, нить, линейка измерительная, пружинный динамометр, весы с равновесом.</p><p><em><strong>Определите кинетическую энергию шаров разной массы, приводимых в движение одинаково растянутой пружиной.</strong></em></p><p><i>Порядок выполнения задания</i></p><p><strong>1.</strong> Закрепите динамометр горизонтально на высоте $h = 50 \text{ см}$ над столом. Прикрепите к крючку динамометра нить длиной 80 см.</p><p><strong>2.</strong> Определите массу $m_1$ шара. Привяжите шар к другому концу нити.</p><p><strong>3.</strong> Закрепите лапку на втором штативе на высоте 50 см над столом. Поставьте этот штатив на таком расстоянии от первого штатива, чтобы при растяжении пружины динамометра до показания $3 \text{ Н}$ шар ложился на лапку штатива.</p><p>Рис. 14.5</p><p><strong>4.</strong> Поднимите шар до уровня крепления нити к пружине, растяните пружину до показания $3 \text{ Н}$, положив шар на лапку штатива. Отпустите шар и заметьте место его падения на стол. Для смягчения удара шара о стол и пред-отвращения его вылета за пределы стола можно установить в месте падения шара картонную коробку с мягким покрытием (рис. 14.5). Измерьте дальность полёта $s_1$ шара в горизонтальном направлении.</p><p><strong>5.</strong> Начальная скорость $v_1$ шара связана с высотой $\text{h}$ и дальностью полёта $s_1$ в горизонтальном направлении выражением</p><p>$v_1 = \frac{s_1}{t}$, $t = \sqrt{\frac{2h}{g}}$, $v_1 = s_1 \sqrt{\frac{g}{2h}}$.</p><p><strong>6.</strong> По измеренным значениям массы $m_1$ шара, высоты $\text{h}$ и дальности полёта $s_1$ вычислите значение кинетической энергии $E_k$ шара, приобретённой под действием растянутой пружины:</p><p>$E_k = \frac{m_1 v_1^2}{2} = \frac{m_1 s_1^2 g}{4h}$.</p><p><strong>7.</strong> Измерьте массу $m_2$ второго шара и повторите опыт при условии одинакового растяжения пружины динамометра. Выполните расчёты и запишите результаты измерений и вычислений в таблицу. Сравните полученные значения кинетической энергии шаров разной массы при одинаковом действии на них растянутой пружины. Сделайте вывод по результатам сравнения.</p><div class="table-wrap"><table style="border: 1px solid rgb(0, 0, 0);"><caption><strong>Таблица 14.1</strong></caption><thead><tr><th style="border: 1px solid rgb(0, 0, 0);">$m_1$</th><th style="border: 1px solid rgb(0, 0, 0);">$m_2$</th><th style="border: 1px solid rgb(0, 0, 0);">$\text{h}$</th><th style="border: 1px solid rgb(0, 0, 0);">$s_1$</th><th style="border: 1px solid rgb(0, 0, 0);">$s_2$</th><th style="border: 1px solid rgb(0, 0, 0);">$v_1$</th><th style="border: 1px solid rgb(0, 0, 0);">$v_2$</th><th style="border: 1px solid rgb(0, 0, 0);">$E_{k1}$</th><th style="border: 1px solid rgb(0, 0, 0);">$E_{k2}$</th></tr></thead><tbody><tr><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td></tr></tbody></table></div>" "img" => array:1 [ …1] ] #original: array:7 [ "id" => 1859384 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1218 …2} "task" => array:2 [ …2] "text" => "<p><strong>Экспериментальное задание 14.1</strong></p><p><strong>Работаем в группе</strong></p><p><strong>Определение кинетической энергии тела</strong></p><p><i>Оборудование:</i> два штатива, два шара разной массы, нить, линейка измерительная, пружинный динамометр, весы с равновесом.</p><p><em><strong>Определите кинетическую энергию шаров разной массы, приводимых в движение одинаково растянутой пружиной.</strong></em></p><p><i>Порядок выполнения задания</i></p><p><strong>1.</strong> Закрепите динамометр горизонтально на высоте $h = 50 \text{ см}$ над столом. Прикрепите к крючку динамометра нить длиной 80 см.</p><p><strong>2.</strong> Определите массу $m_1$ шара. Привяжите шар к другому концу нити.</p><p><strong>3.</strong> Закрепите лапку на втором штативе на высоте 50 см над столом. Поставьте этот штатив на таком расстоянии от первого штатива, чтобы при растяжении пружины динамометра до показания $3 \text{ Н}$ шар ложился на лапку штатива.</p><p>Рис. 14.5</p><p><strong>4.</strong> Поднимите шар до уровня крепления нити к пружине, растяните пружину до показания $3 \text{ Н}$, положив шар на лапку штатива. Отпустите шар и заметьте место его падения на стол. Для смягчения удара шара о стол и пред-отвращения его вылета за пределы стола можно установить в месте падения шара картонную коробку с мягким покрытием (рис. 14.5). Измерьте дальность полёта $s_1$ шара в горизонтальном направлении.</p><p><strong>5.</strong> Начальная скорость $v_1$ шара связана с высотой $\text{h}$ и дальностью полёта $s_1$ в горизонтальном направлении выражением</p><p>$v_1 = \frac{s_1}{t}$, $t = \sqrt{\frac{2h}{g}}$, $v_1 = s_1 \sqrt{\frac{g}{2h}}$.</p><p><strong>6.</strong> По измеренным значениям массы $m_1$ шара, высоты $\text{h}$ и дальности полёта $s_1$ вычислите значение кинетической энергии $E_k$ шара, приобретённой под действием растянутой пружины:</p><p>$E_k = \frac{m_1 v_1^2}{2} = \frac{m_1 s_1^2 g}{4h}$.</p><p><strong>7.</strong> Измерьте массу $m_2$ второго шара и повторите опыт при условии одинакового растяжения пружины динамометра. Выполните расчёты и запишите результаты измерений и вычислений в таблицу. Сравните полученные значения кинетической энергии шаров разной массы при одинаковом действии на них растянутой пружины. Сделайте вывод по результатам сравнения.</p><div class="table-wrap"><table style="border: 1px solid rgb(0, 0, 0);"><caption><strong>Таблица 14.1</strong></caption><thead><tr><th style="border: 1px solid rgb(0, 0, 0);">$m_1$</th><th style="border: 1px solid rgb(0, 0, 0);">$m_2$</th><th style="border: 1px solid rgb(0, 0, 0);">$\text{h}$</th><th style="border: 1px solid rgb(0, 0, 0);">$s_1$</th><th style="border: 1px solid rgb(0, 0, 0);">$s_2$</th><th style="border: 1px solid rgb(0, 0, 0);">$v_1$</th><th style="border: 1px solid rgb(0, 0, 0);">$v_2$</th><th style="border: 1px solid rgb(0, 0, 0);">$E_{k1}$</th><th style="border: 1px solid rgb(0, 0, 0);">$E_{k2}$</th></tr></thead><tbody><tr><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td><td style="border: 1px solid rgb(0, 0, 0);"></td></tr></tbody></table></div>" "img" => array:1 [ …1] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => array:2 [ "refs" => "1717029" "type" => "task" ] "previous" => array:2 [ "refs" => "1717027" "type" => "task" ] "book" => Illuminate\Database\Eloquent\Collection {#1207 #items: array:1 [ 0 => App\Models\Book {#1006} ] #escapeWhenCastingToString: false } "page" => array:2 [ "refs" => "1717372" "type" => "book_page" ] ] #original: array:24 [ "id" => 1717028 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "66" "field_page_end" => null "field_url" => "/9-klass/fizika/kabardin-uchebnik/expzad14-1" "field_display_title" => "Экспериментальное задание 14.1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1058} "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 {#1059} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1095} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1208} "content" => Illuminate\Database\Eloquent\Collection {#1217} "next" => array:2 [ "refs" => "1717029" "type" => "task" ] "previous" => array:2 [ "refs" => "1717027" "type" => "task" ] "book" => Illuminate\Database\Eloquent\Collection {#1207} "page" => array:2 [ "refs" => "1717372" "type" => "book_page" ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } ] #original: array:21 [ "id" => 1717372 "created_at" => "2026-04-10 13:58:26" "updated_at" => null "field_page_start" => "66" "field_url" => "/9-klass/fizika/kabardin-uchebnik/page-66" "field_display_title" => "66" "field_folder" => "1" "field_image_name" => "66" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008} "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1038} "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 {#1036} "content" => Illuminate\Database\Eloquent\Collection {#1047} "next" => array:2 [ "refs" => "1717373" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1717371" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#1057} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] }
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