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mediko1441
@mediko1441
August 2022
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На графике изображена зависимость температуры воды массой 0,2 кг от времени. Какое количество теплоты отдала вода за 2,5 минуты?
с = 4200 Дж/кг °С.
Ответ:
8.4 кДж
4.2 кДж
16.8 кДж
25.2 кДж
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orazbekove
16,8кДж
Q=cm(t2-t1)
Q=4200*0.2(30-10)=16800Дж=16,8кДж
7 votes
Thanks 8
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