Physics Practice Problems Coulomb's Law (Electric Force) Practice Problems Solution: A charge q1 = -18.0 nC hangs from a string. It has...

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Solution: A charge q1 = -18.0 nC hangs from a string. It has a mass of 2.9 g. A second charge of q2 = 53.7 nC is brought to a distance of 2.3 cm from q 1. Find the angle θ assuming the system is at rest as shown in the figure. A. 15° B. 21.3° C. 30° D. 45° E. 47.3°

Problem

A charge q= -18.0 nC hangs from a string. It has a mass of 2.9 g. A second charge of q= 53.7 nC is brought to a distance of 2.3 cm from q 1. Find the angle θ assuming the system is at rest as shown in the figure.

A. 15°

B. 21.3°

C. 30°

D. 45°

E. 47.3°