In Einstein's paper about the relation of mass to energy, the speed of light appears in two different roles. Ellis and Uzan point out that the speed of light plays multiple roles
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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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It states a relationship between energy (E), in whatever form, and mass (m). In this formula, c², the square of the speed of light in a vacuum, is the conversion factor required
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An equation derived by the twentiethcentury physicist Albert Einstein, in which E represents units of energy, m represents units of mass, and c2 is the speed of light squared, or
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