2/1H + 3/1 H -gt; 5/2 He + 1/0 n + 4/2 He A helium-5 nucleus, at rest, decays. Both the neutron and the helium-4 nucleus move away from the location...

2/1H + 3/1 H -> 5/2 He + 1/0 n + 4/2 He

A helium-5 nucleus, at rest, decays. Both the neutron and the helium-4 nucleus move away from the location of the decay. The helium-4 nucleus has a momentum of 1.903 06 x 10^-20 N*s and a kinetic energy of 2.723 50 x 10^-14 J. Determine the mass of a helium-5 nucleus?