Odpowiedź:
t = 1 min = 60 s
V = 1200 l => m = 1200 kg
h = 10 m
g = 10 m/s2
----------------------------------------
P = ?
Ep = mgh = 1200kg*10m/s2*10m = 120 000 J
W = Ep
W = P*t
P = W/t = 120000J/60s = 2000W = 2 kW
Odp. P = 2000 W = 2kW
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Odpowiedź:
t = 1 min = 60 s
V = 1200 l => m = 1200 kg
h = 10 m
g = 10 m/s2
----------------------------------------
P = ?
Ep = mgh = 1200kg*10m/s2*10m = 120 000 J
W = Ep
W = P*t
P = W/t = 120000J/60s = 2000W = 2 kW
Odp. P = 2000 W = 2kW
Wyjaśnienie: