An insulating solid sphere of radius 10.0 cm carries a net charge of 75 p0 that is uniformly distributed throughout the volume of the sphere. A conducting spherical shelf of radius 25.0 cm holding charge of -9.6 pC surrounds the sphere. The shell is surrounded by a conducting hollow sphere with inner radius of of 50 cm and outer radius of 60 cm and carries 9.6 {:0 charge. a) What is the electric field inside the sphere at r = 5 cm ? b) What is the E field in the space between the solid sphere and the shell at r = 15 cm? c) What is the E field at r = 30 cm? d) What is the E field at r = 55 cm? e) What is the E field at r = 70 cm? (k = 8.987 x109 Nmzrc2 ) (30 = 885418782 >