1. The problem statement, all variables and given/known data An X-ray tube is similar to a cathode-ray tube. Electrons are accelerated to high speeds at one end of the tube. If they are moving fast enough when they hit the screen at the other end, they give up their energy as X-rays (a form of nonvisible light). (a.) Through what potential difference should electrons be accelerated so that their speed is 1.00% of the speed of light when they hit the other end of the tube? (b.) What speed would this potential difference give to protons? Express your answer in m/s. (c.) What potential difference would be needed to give protons the same kinetic energy as the electrons? This is literally all we are told for this problem so I'm super confused. How am I supposed to go about solving this? Any help would be greatly appreciated. Thank you in advance. 2. Relevant equations ΔV = ΔU/q0 = -WAB / q0 3. The attempt at a solution so if our change in speed is 1%, I think my [itex]\Delta[/itex]V would be .01, but I have no idea what to do from there (or if I'm even on the right track.