Recent content by umwolv16

I thought I solved for momentum because I found the velocity by the EQN i gave and I know the mass of an electron, but the units weren't right. I didn't know how to convert kg*m/s to MeV/c. I had energy in MeV and found my velocity in terms of c, so I couldn't think of anything else to do, but...

Homework Statement An electron has a total energy equal to five times its rest energy(0.511MeV). --What is its momentum (in MeV/c)? Homework Equations E(total) = [mass(electron)*c^2]/[sq. root of (1- velocity^2/c^2)] ----I converted 2.555MeV (total energy) to 4.088e-13 J and...