What is the answer and how to find the answer?

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?

Preciso de ajuda na parte de termometria e tenho prova amanhã ajuda ae prf

The release of energy by the nucleus of atom as a result of nuclear fission is radiant energy true false