In the Bohr Theory of the hydrogen atom, an electron moves in a circular orbit about a

Question:

In the Bohr Theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is 0.529 x 10-10 m.
(a) Find the electric force between the two.
(b) If this force causes the centripetal acceleration of the electron, what is the speed of the electron?