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Консультация № 202135
06.02.2022, 15:32
0.00 руб.
10.02.2022, 14:12
0
2
1
Здравствуйте! Прошу помощи в следующем вопросе:
Сплав на основе железа содержит гранулярные вкрапления углерода. Плотность сплава без вкраплений составляет [$961$]c=7000 кг/м3. Плотность сплава с вкраплениями составляет [$961$]к=6800 кг/м3. Плотность углерода в области вкраплений составляет [$961$]у=2000 кг/м3. Определите долю объема, которую занимают вкрапления в сплаве. Ответ дайте в процентах и округлите до целых.
Сплав на основе железа содержит гранулярные вкрапления углерода. Плотность сплава без вкраплений составляет [$961$]c=7000 кг/м3. Плотность сплава с вкраплениями составляет [$961$]к=6800 кг/м3. Плотность углерода в области вкраплений составляет [$961$]у=2000 кг/м3. Определите долю объема, которую занимают вкрапления в сплаве. Ответ дайте в процентах и округлите до целых.
Обсуждение
06.02.2022, 17:25
общий
=7000 кг/м3;
=2000 кг/м3;
=6800 кг/м3;
м3 - объем каждого вещества в 1 м3;Система уравнений:
(кг);
(м3);Умножаем второе на
и вычитаем из первого
Об авторе:
Понеже не словес красных бог слушает, но дел наших хощет
Понеже не словес красных бог слушает, но дел наших хощет
10.02.2022, 14:58
общий
это ответ
Здравствуйте, katya-shhelkova!
Предлагаю Вам следующее решение задачи.
Дано:
кг/м3 -- плотность сплава без вкраплений; 
кг/м3 -- плотность сплава с вкраплениями; 
кг/м3 -- плотность углерода в области вкраплений.
Определить:
-- процентную долю объёма, которую занимают вкрапления в сплаве.
Пусть
-- процентная доля объёма, которую занимает основная составляющая сплава, -- процентная доля объёма, которую занимают вкрапления углерода в сплаве. Тогда в соответствии с условием задачи получим систему двух линейных уравнений относительно неизвестных и
решая которую, получим
(%).
Ответ:
Предлагаю Вам следующее решение задачи.
Дано:
кг/м3 -- плотность сплава без вкраплений; кг/м3 -- плотность сплава с вкраплениями; кг/м3 -- плотность углерода в области вкраплений.Определить:
-- процентную долю объёма, которую занимают вкрапления в сплаве.Решение
Пусть
-- процентная доля объёма, которую занимает основная составляющая сплава, -- процентная доля объёма, которую занимают вкрапления углерода в сплаве. Тогда в соответствии с условием задачи получим систему двух линейных уравнений относительно неизвестных и решая которую, получим
(%).Ответ:
Об авторе:
Facta loquuntur.
Facta loquuntur.
Форма ответа
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