A sphere with a charge of 5.0 x 10^-6 C is placed one fifth of the distance between two negatively charged spheres, as measured from the left. The sphere to the left has a charge of -3.0 x 10^-6 C and the sphere to the right has a charge of -6.0 x 10^-6 C. A distance of 10.0cm separates the end spheres. Calculate the net force on the positively charged sphere. In what direction is the net force? What is the net electric field that the positively charged sphere experiences? Is there a point where the net electrical field is zero? If so, where? Ok so I am not positive how to go about solving this one. I know that teo point charges seperated by given distance exert the same force on each other therefore I would think that there is a point where the net electrical field is zero and I would guess that point would be at 5.0 cm but i am not sure. where do I go from here?