A 50.0 kg box is pushed along the floor with a force of 85 N. It is moved 8.0 m. How much work was done in moving the box? Formula:
W = Fd
W(lifting) = mgh g = 9.8 m/s^2
P = W/t

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.