Odpowiedź:Dane:
U=230V
m=100kg
h=25m
t=12,5s
g=10m/s²
szukane:
I=?
Ep=m*g*h
Ep=100kg*25m*10m/s²
Ep=25000J
Ep=W
P=W/t
P=25000J/12,5s
P=2000W
P=U*I
I=P/U
I=2000W/230V
I≈8,7A
Wyjaśnienie:
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Odpowiedź:Dane:
U=230V
m=100kg
h=25m
t=12,5s
g=10m/s²
szukane:
I=?
Ep=m*g*h
Ep=100kg*25m*10m/s²
Ep=25000J
Ep=W
P=W/t
P=25000J/12,5s
P=2000W
P=U*I
I=P/U
I=2000W/230V
I≈8,7A
Wyjaśnienie: