N = A/t ; A = -mgh; m = pV = 45000*1000 = 45*10^6кг.
A = 45*10^6*10*25 = 11250МДж;
N = 11250*10^6/45*10^6 = 250Вт.
N = A/t ; A = -mgh; m = pV = 45000*1000 = 45*10^6кг.
A = 45*10^6*10*25 = 11250МДж;
N = 11250*10^6/45*10^6 = 250Вт.