1. The problem statement, all variables and given/known data An alpha particle (4 times the mass of a proton with a charge of +2e) is at rest 1.0 * 10^-12 m from a stationary proton. The 2 particles immediately move apart. Find the speed of each particle when they are infinitely far from each other. 2. Relevant equations Electrical Energy = kq1q2/r Kinetic Energy = 0.5mv^2 3. The attempt at a solution I used the equation kq1q2/r to find the potential energy of the system and converted the potential energy into 0.5mv^2 to solve for the velocity. I am not sure that I have the right answer.