P=ρgh=1030*10*40=412000Па= 412 кПа
P=F/S
F=PS=412000*2,5=1030000 Н=1,03МН
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P=ρgh=1030*10*40=412000Па= 412 кПа
P=F/S
F=PS=412000*2,5=1030000 Н=1,03МН