Energy=mass x the velocity of light squared (E=MC2), but what does it mean.?

Answer 1

This formula, E=MC2, discovered by Albert Einstein, proposes that when a body has a mass (measured at rest), it has a certain (very large) amount of energy associated with this mass which is given by E=mc2

Answer 2

Hi:

First off the list, you need a little history lesson; about one hundred and fifty years ago. scientists had a problem with the sun. It was not suppose to be burning for 4.5 billion years, when they ran the burn calculation of the sun ( if was made of coal and oxygen that is) it should have burnt for 15,000 years then go out, based on what was known about coal or gas combustion back then. They had a problem about this; they could not explain. then fifty to sixty years later . scientists had discovered the atom ( it's theory was put forth by the ancient Greeks however they had no way of proving it ) and it's particles. when they forced atoms to join or split them in particle accelerators there was a slight mass loss that they could not explain. Einstein took up the challenge and was able to explain the the mass loss, that some of the mass was changed into energy and if enough of it was available it would be a tremendous power source . Scientist armed with this knowledge was able to proved that this is what powered the Sun and the stars in outer space and it was a million times more efficient that coal or gas burning (by 15,000 x 1,000,000 = 15,000,000 years)
So the sun could be burning for as long as the Earth has been around and will keep on burn for another 10 billion years. During World War II. Einstein was able to convenience the U.S. Government to developed the Atomic Bomb using the splitting method on Uranium and Plutoium It a really good story.

Answer 3

Actually, 1kg of matter completely converted into energy is closer to 20 Megatons, not 20 Kilotons. That's 1000 times the energy of the Hiroshima blast. The largest H bomb ever exploded by the US was 15 megatons.

Answer 4

If you have the mass and the velocity of light then you can multiply them together and square it to get the energy.

Answer 5

It means that a very large amount of energy can be derived out of matter. The magnitude of the velocity of light multiplied by itself is a very large number. Einstein's equation suggests that the energy that can be obtained from matter is equal to its mass multiplied by the square of the speed of light. This tremendous amount of energy is proven by the splitting of atoms (nuclear fission - used in nuclear power plants) and joining of atoms (nuclear fission - source of a star's energy).

Answer 6

energy (E) is equal (=) to mass (M) times a constant (C) (the speed of light) squared (2). in English, if you could go the speed of light times your weight squared, you would turn into energy. theory goes a pencil has enough "energy" to power new york city for a week if plugged into this theory. at the same time, if you manged to get the pencil that fast, the energy would explode, leveling new your city, before it could power it. lol

Answer 7

It means that one kilogram of mass converts into the same amount of energy as 20 thousand tons of TNT. Ask the people of Hiroshima and Nagasaki.

Answer 8

This can be translated to a quantum idea. It tells us that mass and energy are related and essentially that they can be converted into one another. Therefore, if one was to have a certain amount of mass it can be converted to energy and vice versa.

Answer 9

If you completely annihilate mass=M & convert it into energy, it would be equal to MC2.

Answer 10

This is an equation in physics, This is a very fundamental equation that explains the energy of particle character. This is the principle used in nuclear fusion, take for example "The sun"