Author Question: The radius of a typical nucleus is about 5 10-15 m. Assuming this to be the uncertainty in the ... (Read 59 times)

appyboo · **on:** Jul 29, 2018

The radius of a typical nucleus is about 5 10-15 m.

Assuming this to be the uncertainty in the position of a proton in the nucleus, estimate the uncertainty in the proton's energy, in MeV. (mproton = 1.67 10-27 kg, h = 6.626 10-34 J s, 1 eV = 1.6 10-19 J)
A) 0.8 MeV B) 1.0 MeV C) 0.6 MeV D) 0.4 MeV

Question 2

If a - particle at rest decays into a neutron and a - , what is the total kinetic energy of the decay products?

The masses of -, neutron, and - are 1197 MeV/c2, 940 MeV/c2, and 140 MeV/c2, respectively.