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

[appyboo]

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.

[qytan]

Answer to Question 1

A

Answer to Question 2

117 MeV

[appyboo]

Excellent

[alexanderhamilton]

Gracias!