# Question

A neutrino created in a beta decay process has an energy of 2.65 MeV. What is the maximum possible kinetic energy of the beta particle if the disintegration energy is 5.35 MeV:
(a) (1) zero, (2) less than 5.35 MeV but not zero, (3) 5.35 MeV, or (4) greater than 5.35 MeV?
(b) Under these conditions, determine the kinetic energy of the beta particle.
(c) What is the direction, rela-tive to the neutrino direction, of the momentum of the beta particle after the decay? Explain your reasoning.

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