żarówka pobrała 2,16 MJ energii w czasie 10 h. Jaka jest moc tej żarówki?
2,16 MJ = 2160000 J
10h = 10 * 60 = 600minut
600 * 60 = 36000 sekund
P = W/t
P = 2160000J/ 36000s
P = 60W
Odp: moc tej zarowki wynosi 60 watów ( 60W)
W=2,16MJ=2,16*10^6J t=10h=36000s
t=36*10^3s P=? W=P*t p=W/t
p=2,16*10^6J/36*10^3s
p=60W
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2,16 MJ = 2160000 J
10h = 10 * 60 = 600minut
600 * 60 = 36000 sekund
P = W/t
P = 2160000J/ 36000s
P = 60W
Odp: moc tej zarowki wynosi 60 watów ( 60W)
W=2,16MJ=2,16*10^6J
t=10h=36000s
t=36*10^3s
P=?
W=P*t
p=W/t
p=2,16*10^6J/36*10^3s
p=60W