Recent content by fanwars

It makes more sense now. I guess I was all the time applying the energy of a photon, not an electron. Thank you, now I can sleep restfully at night.

Homework Statement Find the wavelength of an electron which is traveling at 4.35*10^6 m/s. Homework Equations p = h/λ p = mv E = hf E = 1/2mv^2 The Attempt at a Solution I know this can be easily solved using the momentum equation and De Broglie's law like this: mv = h/λ...