po=7800 кг/м3 L=10 м S=0.01 м2 h=15 м А=?
A=m*g*h m=po*V=po*S*L
A=po*S*L*g*h=7800*0.01*10*10*15=117000 Дж (117 кДж)
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po=7800 кг/м3 L=10 м S=0.01 м2 h=15 м А=?
A=m*g*h m=po*V=po*S*L
A=po*S*L*g*h=7800*0.01*10*10*15=117000 Дж (117 кДж)
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