Răspunsuri

2014-04-19T15:29:46+03:00
Se da:
d=80m
V=75m^3           
t=1min=60s
p=1000kg/m^3

Rezolvare:
P=L/t
L=Fd
F=G=mg
m=V x p =>m=75m^3 x 1000kg/m^3=75000kg
G=75000kg x 10N/kg=750000N
L=750000N x 80m=60.000.000J=60MJ
P=60.000.000J:60s=1.000.000W=1MW
Raspuns:P=1MW
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