7. A neutron with rest energy 939 MeV moves with speed u = 0.6c. a) (5 points) What is the neutron's total energy? (Give you answer in MeV) X = = 1.25 ( E = Kone ? V 1 - 0.62 E = 1164.375 - 939 Mey = b) (5 points) What is the neutron's kinetic energy? (Give you answer in Me V) = ( 931.5 key / 2 ( 0.60) ) 167.67 MeV c) (5 points) What is the neutron's momentum? (Give you answer in MeV/c)