In the Einstein's famous equation: E = mc2. E stands for the energy, m stands for it's mass, and c?

## c stands for speed of light in vacuum

In the Albert Einstein’s revolutionary 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,

(c = 2.99792458 108 m/s)