Orbital Electron

Points: $2$

An electron and a proton attract each other with a $\frac{1}{r^2}$ electric force just like the gravitational force. Suppose that an electron moves in a circular orbit about a

proton with a period of the circular motion of $5\mathrm{.}16hr.$ What is the radius of the orbit? $($Note$,$ this is an unrealistic situation!$)$

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If the period is $4\mathrm{.}00{10}^{-16}s,$ as it is in a hydrogen atom, what is the radius of the orbit?

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