One issue encountered during the exploration of Mars has been the accumulation of static charge on land-roving vehicles, resulting in a potential of...

One issue encountered during the exploration of Mars has been the accumulation of static charge on land-roving vehicles, resulting in a potential of 100 V or more. Calculate how much charge must be placed on the surface of a sphere of radius 1.75 m for the electric potential just above the surface to be 100 V. Assume that the charge is uniformly distributed.