17.21 A=m*g*h h=V*t A=m*g*V*t
m=A/g*V*t=1,2*10^6/10*0,5*60=4*10^3 кг
17.23 N=F*V F=N/V=75*1063/1,5=50*10^3 H
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17.21 A=m*g*h h=V*t A=m*g*V*t
m=A/g*V*t=1,2*10^6/10*0,5*60=4*10^3 кг
17.23 N=F*V F=N/V=75*1063/1,5=50*10^3 H