Answer
See explanation.
Work Step by Step
a. Express the total energy in terms of the given momentum and known rest mass.
$$E=\sqrt{(mc^2)^2+(pc)^2}=8.68\times10^{-10}J$$
b. The kinetic energy is the total energy minus the rest energy.
$$K=8.68\times10^{-10}J –mc^2=2.71\times10^{-10}J $$
c. $\frac{K}{mc^2}=0.453$.