1) Ас=F*L=720*2=1440 Дж
2) Ап=P*h=2400*0.4=960 Дж
3) n=Ап/Аз=960/1440=0.67 (67%)
4) Fтр=(Ас-Ап)/L=(1440-960)/2=240 H
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Verified answer
1) Ас=F*L=720*2=1440 Дж
2) Ап=P*h=2400*0.4=960 Дж
3) n=Ап/Аз=960/1440=0.67 (67%)
4) Fтр=(Ас-Ап)/L=(1440-960)/2=240 H
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