Suppose we could place a small explosive charge on one of the bumpers so that it would explode on contact, pushing the two carts apart. will momentum still be conserved? explain. will kinetic energy be conserved? what value will the coefficient of restitution have?

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.