3. A stroppy teenager throws their PS4 controller at the wall after losing at FIFA. It has 78.125J of kinetic energy and moves at 25 m/s before it hits the wall. How much mass does it 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.