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phys: correct matter energy equivalence formula

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eggy 2021-05-04 20:09:48 -04:00
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@ -557,8 +557,11 @@ From different inertial reference points, there can never be agreement on whethe
### Matter-energy equivalence ### Matter-energy equivalence
The kinetic energy of an object in an inertial frame of reference relative to another is related to its velocity and its mass. The total energy of an object in an inertial frame of reference relative to another is related to its velocity and its mass.
$$E_k=\frac{mc^2}{\sqrt{1-\frac{v^2}{c^2}}}$$ $$
E_t=\frac{mc^2}{\sqrt{1-\frac{v^2}{c^2}}} \\
E_k=E_t-E_\text{rest}
$$
At rest, the energy of an object is related to its mass. At rest, the energy of an object is related to its mass.
$$E_\text{rest}=mc^2$$ $$E_\text{rest}=mc^2$$