Hey, I was just wondering if someone could give me feedback on a problem. For some reason the answer is not in the back of the text. 1. The problem statement, all variables and given/known data An x-ray with a wavelength of 2.5 x 10-8 m is absorbed by a stationary electron. Determine the final velocity of the electron. Vxray=3.0x10^8 m/s Velectron=0 melectron= 1.602x10^-19kg mxray=(h/λc) Velectron(after)= h=6.626x10^-34Js λ=2.5x10^-8 2. Relevant equations Velectron(after)= Vxray((2(h/cλ))/(melectron+(h/cλ))) 3. The attempt at a solution V(electronafter)= (3.0x10^8)((2((6.626x10^-34)/(3.0x10^8)(2.5x10^-8))/(1.602x10^-19)((6.626x10^-34)/(3.0x10^8)(2.5x10^-8))) v(electronafter)= 3.31x10^-7m/s Sorry if the formula is hard to understand, I used the formula for conservation of momentum in an elastic collision where one object is stationary before the collision.