A disk of radius RR is sprayed with a charged paint so that the resulting charge density varies continually with radial distance, r, from the center of the disc according to

Observation point PP is located on the symmetry axis at a distance hh above the plane of the disc, as shown.

If R=5.65cm, h=9.77cm and 0=0=5.68nC/m2, then what is the potential, in volts, at observation point PP?

V = ?V

PLEASE HELP ME V