12.2. Coulomb’s Law http://www.ck12.org
b. Find the distance between the leftmost pith ball and the wall (this will involve working a geometry
problem)
c. Find the tension in the string (Hint: usey−direction force balance)
d. Find the amount of charge on the pith balls (Hint: usex−direction force balance)Answers- a. attracted b. 1350 N c. 1350 N
2.Fg= 1. 0 × 10 −^47 N andFe= 2. 3 × 10 −^8 N. The electric force is 39 orders of magnitudes bigger. - 0.293 N and at 42. 5 ◦
- b. 0.25m c.FT= 0 .022 N d. 0. 37 μC