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posted by glen .
three point charges are located on the positive yaxis of a coordinate system.charge q1 = 2.09 nC is 2.05 m from the origin and charge q2 = +2.70 nC is 3.25 m from the origin, and the third charge q3 = 2.56 nC is located 5.03 m on the positive yaxis.the fourth charge q4 = 4.06 nC is 3.97 m on the negative yaxis.what is the total force exerted by these charges on charge q5 = 7.43 nC located at the origin.

do coulombs law, add. For each force, location determines the direction of force. so draw a diagram first.
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