An electron of kinetic energy 50 keV moves in a circular orbit perpendicular to a magnetic field of 0.405 T.
Find the radius of the orbit.
I tried using KE=mv^2/2 to find velocity. then using qBv=(mv^2)/r to solve for r. but my answer was wrong. I am pretty sure this is the method. I think my conversions may be wrong.
I have one submission left. would someone be able to run the numbers through quick?