A small polyester ball and a piece of polyvinyl chloride (PVC) pipe are given the same negative charge. The ball is then placed over the PVC pipe, where it is observed to remain at rest 30 cm from the pipe. The mass of the polyester ball is 2.0 grams. Determine the charge on the ball.
A. 0.44 μC
B. 4.4 x 10−7 μC
C. 0.050 μC
D. 3.9 x 109 μC