Question

find the mass required to generate 1.3 * 10^15 J energy

Answer 1

$e = m {c}^{2} \\ 1.3 \times {10}^{15} = m{(3 \times {10}^{8} ) }^{2} \\ m = \frac{1.3 \times {10}^{15} }{9 \times {10}^{16} } = \frac{13}{9 \times 100 } \\ m = 0.0144$
required mass is 0.0144 kg or 14.44 gm
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