Предмет: Физика, автор: Олеся0809

помогите плиз, это одна картинкатам вроде нормально видно

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Автор ответа: Beautiful00

1, t1=20 t2=40 Q=240 C=250 Q=cm ( t2-t1 ) m=Q/c (t2-t1) m=250/250*20=250/5000 = 0.05 кг 2, m=200 г = 0.2 кг q=14*10 6 Q-? Q=qm Q= 0.2 * 14* 10 6= 2.8*10 6 = 2.8*10*10 6 = 28* 10 7 Дж

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