The problem involves the decay of a plutonium-239 nucleus into a uranium-235 nucleus through the emission of an alpha particle, with a focus on determining the speed of the uranium-235 nucleus based on the kinetic energy of the emitted alpha particle.
The discussion is ongoing with participants exploring the necessary mass values and their implications for the problem. Some guidance has been provided regarding the calculation of the alpha particle's speed, but no consensus has been reached on the overall approach.
Participants note that the masses of the nuclei are not provided in the problem statement, suggesting that they may need to be looked up. The kinetic energy of the alpha particle is given, which is a key element in the discussion.
BruceW said:yeah, keep going. So, what is m2 and m1 ?