Ответ:
Fa=g*pж*Vт
Fa=10н/кг*1000кг/м3*4м*1,5м*0,5м=30000Н
30000Н=30Кн
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Ответ:
Fa=g*pж*Vт
Fa=10н/кг*1000кг/м3*4м*1,5м*0,5м=30000Н
30000Н=30Кн