P=?
Lahendus:
P=A/t= (F*s)/t= [Newtoni 2.seadus] =(m*a*s)/t =[a=g=9,81m/s^2]=(m*g*s)/t =[p=m/V] =(p*V*g*s)/t=(1000*5*9,81*20)/1=981000W
thomas sabo charm
981000W - 100%
xW - 80%
x=(981000W*80%)/100%=784800W
Vastus: hьdroelektrijma vхimsus on 784,8кW
должно быть правильно schmuck