A small nuclear reactor produces 500,000 MeV of thermal energy each second. How many neutrons per second does it have to convert entirely into energy to do this? A ssion neutron is emitted from a...

A small nuclear reactor produces 500,000 MeV of thermal energy each second. How many neutrons per second does it have to convert entirely into energy to do this?

A ssion neutron is emitted from a Plutonium-239 nucleus with an initial kinetic energy of 10 MeV. What is its speed in meters per second immediately after it is born?