Chapter P, Prerequisites - Chapter P Review - Exercises - Page 77: 49

$\approx 1.65\times 10^{-32}$

$\displaystyle \frac{a*b}{c}\approx\frac{(0.000002.93)(1.582\times 10^{-14})}{28064\times 10^{12}}=\frac{(2.93\times 10^{-6})(1.582\times 10^{-14})}{2.8064\times 10^{12}}= \approx 1.65\times 10^{-32}$