A point charge of 20nC is located at (4,-1,3), and a uniformline charge of -25nC/m lies along the intersection of the planesx=-4 and z=6. (a) Calculate D at (3,-1,0). (b) How much electric flux leves the surface of a sphere of radius 5,centered at athe origin? (c) Repeat part b if the radius of thesphere is 10.