1. The problem statement, all variables and given/known data In a fission process, a slow neutron causes a uranium nucleus (m=218943.42 MeV/c^2) to split into a barium nucleus (m=131261.73) and a krypton nucleus (m=85619.32), plus two excess neutrons (actually 3 including the original neutron, but that is present before the process as well), each of mass 939.57. Calculate the energy converted from mass to kinetic energy in this process. 2. Relevant equations K= E-mc^2 E^2=p^2c^2+m^2c^4 3. The attempt at a solution K = E - mc^2 Ebef=Eaft Not given any velocities, the other formulas I have for energy and momentum are not really helpful. But I know that I will have to find the total energy before and after somehow.