5. Imagine that you had no hanging mass for part 2 of the experiment. If you simply pulled on the string with a known amount of force, would you expect to see the same results? Could you use the same equations? Why or why not? (2 points)

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.