A large positively charged object with charge q+ = 3.25 C is brought near a negatively charged plastic ball suspended from a string of negligible mass. The suspended ball has a charge of q = -49.3 nC and a mass of 16.5 g. 9 What is the angle that the string makes with the vertical when the positively charged object is 18.5 cm from the suspended ball? The positively charged object is at the same height as the suspended ball. D = 9+