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к 5 кг воды при 12 градусов долили в горячую воду при 50 градусов получив смесь температурой 30 градусов сколько воды долили
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Уравнение теплового балансаQпол=QотдQпол=с*m1*(30-12)Qотд=c*m2(50-30)m2 нужно найти приравниваем выражения и сокращаем c (удельную теплоемкость)m1*18=m2*20m2=m1*18/20=5*18/20=4.5кг
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Автор:
buffieeccu - 5 лет назад
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В тексте пропущены некоторые слова, которые даны в конце текста. Ваша задача – вставить слова по смыслу в текст.
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Пропущенные слова:alas, by, deal, done, down, ever, existence, golden, growing, hastily, high, narrow, on ,out ,railway, salt, surprised, tears, wooden, words
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