Question

When you said E=mc2 ,what does the c stand for?

Asked by: Chris Shepherd

Answer

In the Einstein's famous equation: E=mc2

E stands for the energy of the object in question.
m stands for it's mass, and
c stands for the speed of light in vacuum,
( which is: c = 2.99792458 108 m/s )

Answered by: Anton Skorucak, M.S. Physics, PhysLink.com Creator

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'One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery every day.'

Albert Einstein
(1879-1955)