Question

(a) Two small charged spheres are 6.52 cm apart. They are moved, and the force each exerts on the other is found to have tripled. How far apart are they now? (5 marks)

(b) A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -28.0 µC. How many excess electrons does she get, and by how much does her mass increase?

Answer 1

Explanation:

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