Предмет: Физика, автор: andreadiiluha

помогите физика даю 30 баллов

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Ответы

Автор ответа: fatt52

0

Ответ:

67,3 °С

Объяснение:

m1=46 т t1=76 °C m2=9 т t2=23 °C tc=?

===

Q1=Q2

c*m1*(t1-tc)=c*m2*(tc-t2)

tc=(m1*t1+m2*t2)/(m1+m2)=(46*76+9*23)/(46+9)≈67.3°C

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