Physics, 30.09.2019 10:30, qwertylol12345

There are 2 point charges. q1 is 4nc and is at (-2,0). q2 is -2nc and is at (0,3).
how much work does the electric field do when a third point charge of +3.00 nc is moved from infinitely far away and placed at the origin?
i know infinitely far means va will be 0. however because there are 2 other charges instead of 1, i do not know how to manipulate k(q)/d to fit all the charges in.

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There are 2 point charges. q1 is 4nc and is at (-2,0). q2 is -2nc and is at (0,3).
how much wo...