Use Einstein’s energy equation to solve the following problem. Recall that the speed of light is 3 × 108 m/s. If a 5.0-kg stone is completely converted to energy, what is its energy equivalent in joules?
E=mc2 , where m is the mass (5 kg) & c is the speed of light ( 3 × 108 m/s) . All you have to do is substitute the given values.
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