A typical half life calculated from the simplest such theory, the SU(5) model, is about 10^32 years.
a) How many protons are in all the oceans on earth?
b) For this theory how many protons will decay in a year in all the oceans on the earth?
c) does the GUT proton decay given above obey the followingconservation laws: charge, strangness, baryon number, lepton number?