Q= cm(T2-T1)=336000m
Q=A
A=UIt=220*1,75*(25*60)=577500
336000m=577500
m=1,72кг
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Q= cm(T2-T1)=336000m
Q=A
A=UIt=220*1,75*(25*60)=577500
336000m=577500
m=1,72кг