A Gaussian surface in the form of a hemisphere of radiusR = 9.86 cm lies in a uniform electric field of magnitudeE = 7.16 N/C. The surface encloses no net charge. At the(flat) base of the surface, the field is perpendicular to thesurface and directed into the surface. What is the flux through(a) the base and (b) the curvedportion of the surface?