Question

Referring to Exercise 37, estimate the activity of the Earth’s oceans (in curies) due to proton decay. Assume the oceans are 3 km deep covering 75% of the Earth’s surface.
In exercise Suppose the grand unified theory (GUT) was correct and the half-life of a proton was 1.2 x 1035 y. Estimate the decay rate of a liter of water in decays per second and curies. How does this compare to a small (by laboratory standards) radioactive source of one microcurie?


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  • CreatedAugust 29, 2015
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