what does the C mean in Einstein's formula E=MC2?

Answer 1

C is equal to the speed of light, or rather 3 X 10^8 meters per second.

Answer 2

There is a Newtonian formula expressing the amount of energy that is inherent in a moving body. It is high-school physics and goes e=mv^2, meaning quite simply that energy in a moving body is related to its mass multiplied by the square of its velocity.

Einstein's famous equation is that formula applied to nuclear processes, where if you transfer matter to energy (a nuclear reaction), the matter is expressed at the velocity of light. Thus the v of the Newtonian equation is replaced by the (massive) c, the speed of light.

Quite simply, it means you can get a heck of a lot of energy from a tiny amount of matter, if you use nuclear processes to convert that matter to energy.

Answer 3

Energy is equal to the product of mass by the square of the speed of light

Answer 4

C represents the speed of light.

E=MC^2 is actually a simplified version of a slightly more complex equation.

Total Energy = mc^2/(1 – v^2/c^2)^1/2 – mc^2

If you assume V (velocity) to be zero, you wind up with MC^2.

E=MC^2 is the potential energy of a mass at rest.

Answer 5

Speed of Light
energy = mass x the speed of light squared

Answer 6

If I remember my physics, C is the speed of light.
Now, why do you ask? Can you understan this better? Borrow a physics text: start with a high schooler one and get busy buster.

Answer 7

It's stands for celeritis, which is the latin word for speed. Like other posters said, it means the speed of light in a vacuum.

Answer 8

E= energy , m= mass c=speed of light

Answer 9

energy=mass times speed of light squared

Answer 10

The speed of light.