Answer
$9.0\times10^{13}\,J$
Work Step by Step
Energy $E=mc^{2}$ where $m$ is the mass and $c$ is the speed of light.
$\implies E= (0.0010\,kg)(3.00\times10^{8}\,m/s)^{2}$
$=9.0\times10^{13}\,J$
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