(Answered) A charge is placed at the origin another charge -2q is

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A charge is placed at the origin, another charge -2Q is placed at (x=6m, y=0) and a third charge 4Q is placed at (x=0, y=8).

A) What is the electric potential energy of the system? Your answer should be in terms of k and Q.

B) How much work is needed to move the charge Q very far away from the other two charges? Your answer should be in terms of k and Q.

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