36. What are the necessary condition for work to done A). Force must be applied on a body
B). The applied force causes the body to displace
C). The force and the displacement must be parallel or in the same direction
D). All of the above

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YO​

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.