Question

1.Neutrons in free space are not stable, and decay into a proton and electron: neutron → proton + electron. The mass of the neutron is 1.67493 × 10-27 kg, and the mass of the proton is 1.67262 × 10-27 kg. What is the total energy of the emitted electron in joules?

2. The most powerful nuclear weapon ever tested was built by the Soviet Union. It had an explosive force of 50 million tons of TNT. The energy of 1 million tons of TNT = 4.2 × 1015 joules. How much matter was converted into energy in this bomb? Use units of grams for the converted mass.

Answer 1