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A field contains three charges, one of which is located at the origin and has +3.0...

A field contains three charges, one of which is located at the origin and has +3.0 x 10-6 C of charge on it. The second charge is located at positive 3.0 meters and the x-axis and has -4.5 x 10-6 C of charge on it. The third charge is located at negative 4.0 meters on the x-axis and has +2.0 x 10-6 C charge on it. How much electric force is on the first charge, due to the other charges on the field?

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