E=mc^2 what is the meaning of it?

Answer 1

The E (for energy) stored matter which is equal to the M (mass) of that matter times the speed of light squared (9x10^16) which is a constant

Answer 2

E = mc^2 is the famous equation derived by Albert Einstein.
E stands for energy, m for mass, c for celeritas, the speed of light (299 792 458 m / s).

This equation states the relationship between mass and energy. Mass and energy are highly interchangeable. If you could convert all the mass in a certain object to energy, the amount of energy you would get is the mass multiplied by the square of the speed of light (mc^2). Conversely, it also means that to create just a small amount of mass, you would need to use alot of energy.

Answer 3

Jonny Jo has expressed it properly. It is the EQUIVALENCE of mass and energy. It does not mean that a conversion is possible, and in fact such a conversion is rare (matter/antimatter interaction). In both fission and fusion reactions, there is a mass difference between the initial and final reaction components, but all atomic particles are accounted for. The energy released in these reactions is the binding energy of the nucleus, which appears as a mass difference when the binding energy of the reaction product nucleii is less that the reacting nucleii. In fact what you are seeing here is the energy difference manifesting itself as a mass difference, according to E=MC^2.

Answer 4

This formula shows the conversion of mass into energy.
E=energy
m=mass
c is the speed of light in a vacuum which is 8.0 x 10^8 m/s
so obviously for a small amount of matter there is a very large amount of energy holding the nuclei together. This binding energy is what is released in an atomic bomb using uranium 235, which is a runaway chain reaction because 3 neutrons are released for every one that is used to initiate the fission of one nucleus.

Answer 5

Energy = mass x (the speed of light) ^2

This is what's called mass-energy equivelency. Basically is says that if you were to take a small amount of mass and convert it to energy, you will get a LOT of energy. This is the principle behind fusion, which is why stars work. Two hydrogen atoms are heated and compressed and eventually fuse to become a helium atom. In the process, a very small amount of mass is lost, which turns directly to energy.

Answer 6

The energy stored within matter is equal to the mass of the matter times the speed of light squared (9x10^16)

Answer 7

Energy = Mass x Speed of Light Squared.

Basically it is said that if you could split an atom (mass) you would gain enormous amounts of energy. I.E. Atomic Bomb was based on this formula

Answer 8

energy=massx(vel of light)^2