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It is equation of theory of relativity given by great scientist Einstein, it is mass-energy equivalence equation.
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E=mc^2 is Einstein's equation.it is mass-energy equivalence relation given by Einstein.it is theory of special relativity of mass and energy given by Einstein.
E=mc^2 proved mass(m) and kinetic energy(E) are equal since speed of light(c^2) is constant.
In other words,mass can be changed into energy and energy can be changed into mass...

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