Предмет: Физика, автор: EvaLevinko

Какое кол-во теплоты потребуется для нагревания стального бруска объёмом 1000см3 на 50 градусов по цельсию ?

Ответы

Автор ответа: bobo12345
2
Из формулы плотности p=m/v. выражаем массу m=pv, получаем 0,001м^3*7800=7,8кг. Q=cm/\t Q=500*7,8*50=195000ДЖ или 195кДЖ
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