A large positively charged object with charge q+ = 3.25 μC is brought near a negatively charged plastic ball suspended from a string of negligible mass. The suspended ball has a charge of q− = −46.3 nC and a mass of 17.5 g. What is the angle θ that the string makes with the vertical when the positively charged object is 17.5 cm from the θ = suspended ball? The positively charged object is at the same height as the suspended ball.
