An electron of mass (m=9.1*10^(-31)kg) orbits a proton at a distance of 5.3*10^(-11)m. The proton pulls on the electron with an electric force of 9.2*10^(-8)N.(adsbygoogle = window.adsbygoogle || []).push({});

How many revolutions per second does the electron make?

This is what I did:

m=9.1*10^(-31)kg

v=5.3*10^(-11)m

T=9.2*10^(-8)N

V=sqrt(rT/m)= 23147876.27 m/s

angular velocity (w) = (v/r) = 4.38^(16) rad/s

w*(1 rev/(2(pi)rad)) = 9.17*10^9 rev/s

I was told the answer was wrong.

Please help

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Revolutions problem

**Physics Forums | Science Articles, Homework Help, Discussion**