E mc2 is a famous equation in physics that was developed by Albert Einstein. The equation equals mass times the speed of light squared. E equals energy, M equals mass, and C equals
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E is the amount of energy in an atom or molecule of a substance. M is the mass or the amount of that substance. C is the speed of light that never changes and is equal to 299,792,458
http://wiki.answers.com/Q/What_makes_E_equals_mc2

1. Weigh the object you will perform the calculation for with a mass balance scale. Record its mass. 2. Convert the mass to kg, if necessary. To convert from g to kg, for example,
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e=mc^2 is an equation for calculating energy (e) using mass (m) times the speed of light
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