Question

The energy equivalent of \(0.5 \mathrm{~g}\) of a substance is:
A \(4.5 \times 10^{16} J\)
(B) \(4.5 \times 10^{13} J\)
c \(\quad 1.5 \times 10^{13} J\)
D \(0.5 \times 10^{13} J\)

Answer 1

Solution:
From mass-energy equivalence,
$$
\begin{aligned}
&E=m c^{2} \\
&=0.5 \times 10^{-3} \times 9 \times 10^{16} \\
&=4.5 \times 10^{13} J
\end{aligned}
$$

Answer 2

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Answer 3

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