Ответ:
t=300c
T=86*
I=2A
m=0.2кг
c= 4200
U-?
Q=cmt
Q=4200*0.2*86=72240Дж
Q=A=P*t
P=A/t
P=72240/300=240.8Вт
P=IU
U=240.8/2=120.4В
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Ответ:
t=300c
T=86*
I=2A
m=0.2кг
c= 4200
U-?
Q=cmt
Q=4200*0.2*86=72240Дж
Q=A=P*t
P=A/t
P=72240/300=240.8Вт
P=IU
U=240.8/2=120.4В