posted by Helen .
An energy of 6.0×10−2 J is stored in the metal sphere on top of a Van de Graaff generator. A spark carrying 1.0 micro-coulomb (1.0×10−6 C) discharges the sphere.Find the sphere's potential relative to ground.
last one for the night
Energy = Q*V
V = Energy/Q = 6*10^-2/10^-6 = 60,000 V