Question: An electron moves in a circular orbit about a stationary proton. The centripetal force is provided by the electrostatic force of attraction between the proton

An electron moves in a circular orbit about a stationary proton. The centripetal force is provided by the electrostatic force of attraction between the proton and the electron. The electron has a kinetic energy of 2.18 x 10–18 J.

(a) What is the speed of the electron?

(b) What is the radius of the orbit of the electron?

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