4. Three charges are placed at the corners of a right triangle as shown in the figure at right. Both short sides of the triangle have a length of 2 +3 UC meters. A. Sketch a vector that represents the total electric field at point X. (Point x is located halfway between the +3 JC charge and the -3 JC charge, along the hypotenuse.) -3 LLC +4 uC B. Determine the magnitude of the electric field at point x. C. Determine the force exerted on the +4uC charge, due to the other two charges. Show all work