Solution to 1992 Problem 85

We use the equation
\begin{align*}E^2 = m^2 c^4 + p^2 c^2\end{align*}
Plugging in the given values of E and m, we find that
\begin{align*}\left(1.5 \mbox{ MeV}\right)^2 = \left(0.5 \;\mathrm{MeV}\mathrm{/}\mathrm{c}^2\right)^2 c^4 + p^2 c^2 \Rightar...
\sqrt{2} evaluates to 1.414, therefore answer (C) is correct.

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