# Relativity slide question

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On slide L1601, on the very last page on that slide, can you explain how you got 938.3 Mev. Im confused on the process?

It is a constant given. We can experimentally measure the mass of a proton which is 1.672621777(74)×10−27 kg. In an energy form, we have E=mC​2=938.3 Mev.

answered Dec 5, 2013 by (21,750 points)