How much work is accomplished when a force of 400 n pushes a box across the floor for a distance of 10 meters? a. 4000 j b. 40 n c. 4000 n d. 40 j

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.