Two point charges as described below are located in an (x,y) coordinatesystem: q1 = - 3 nC at point p1(0 ,- 2 m)%3D q2 = 2 nC at point p2

= (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.