= (3 m , 0) Calculate the magnitude of the electric field strength at a third pointp3 = (3m, - 2 m) of the coordinate system. A third negative charge q3 = - A Coulomb is now placed at point p3.Calculate the magnitude of the total force exerted by q1 and q2 on q3. Sketch a diagram, clearly showing the (x,y) coordinate system, the direction of the electric field at point p3, and the direction of the force on a3.
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