Odpowiedzi

2010-01-18T18:13:02+01:00
2010-01-18T18:14:19+01:00
P = 60 W
W = 180 Wh
t = ?
P = W/t
P*t = W
t = W/P
t = 180 Wh/60 W
t = 3 h
2 3 2