A beam of 6.86 MeV protons is incident on a target of 27Al 13. Those protons that collide produce the reaction shown below.
p+27 Al 13>>>27 Si 14 + n (27 Si 14 has a mass of 26.986 721u.) Neglecting any recoil of the product nucleus, determine the kinetic energy of the emerging neutrons.
=_______MeV