Предмет: Физика, автор: danilkot980

вычислите, на сколько градусов нагреется вода массой 50 г, если в нее опустить кусок меди
массой 400 г, который остывает в воде от 70 до 10 С​

Ответы

Автор ответа: bassygarabahtiar
0

Ответ:

m=50g=0,05kg

Q1=cm(t2-t1)=4200×0,05×(70°-10°)=12,6кДж

Q2=0,4×400×60=9600Дж=9,6кДж

Решение:Q=Q1+Q2=12,6+9,6=22,2кДж

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