Anon-conducting sphere of radius r = 3.0 cm carries a charge q = 2.0 mc distributed uniformly throughout its volume. at what distance, measured from the center of the sphere, does the electric field reach a value equal to half its maximum value?

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s