R = U/I
R = 10V/5A = 2 Ωm = 5[kg]
h = 20[m]
t = 20[s]
U = 10 [V]
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P, I, Q, R ?
Ep = mgh = 5kg*10m/s²*20m = 1000 J
Ep = W
W = P*t
P = W/t
P = 1000J/20s = 50 W
P = 50 W
P = U*I
I = P/U = 50W/10V = 5 A
I = 5 A
R = U/I
R = 10V/5A = 2 Ω
R = 2 Ω
Q = I*t
Q = 5A*20s = 100 C
Q = 100 C