Theory of relativity???

Question

I learned about Einstein's theory of relativity in school last year. It's summer now and I remember that the equation is e=mc2, but what does that equation stand for5. I used to know, but now I can't remember and its killing me, haha! ne help would be appreciated, thxx!! =]

Answer 1

E=mc² is just ONE of the many ideas, results and equations that come from the theory of relativity.  (It's probably the most "popular" equation because of its historical relationship to the atomic bomb.)

The equation expresses the idea that mass can be treated as a form of energy; and energy can be treated as a form of mass.  You can convert one into the other; and when you do, the equation E=mc² defines "how much" of one you can get from the other.  It says, for example, that if you can convert the mass of a penny into energy, you'd get enough enough energy to light up a large city for weeks.

Answer 2

it is an equation to tell how much energy is in a given amount of mass.

it has NOTHING to do with not being able to travel faster than light. the equation that deals with that is M0=M/sqrt(1-(v^2/c^2)).

Answer 3

Energy= Mass x (speed of light squared)

Answer 4

e=energy

m=mass

c2=speed of light squared

it basically states you cannot travel faster than the speed of light due to the energy require (it becomes infinite)

Answer 5

Einstein had related mass and energy in the famous equation: -

E = mc²

This equation means that mass and energy are equivalent and therefore interchangeable.

During the later part of this year, the particle accelerator at CERN (the LHC) will be colliding counter rotating beams of protons to convert their mass into pure energy, which will then decay back into a shower of particles. Hence, the interchangeability of mass and energy! The physicist at CERN are hoping that in this shower of particles they will find evidence for the Higg's boson.

Answer 6

energy = mass x speed of light squared

It's a calculation used to measure how much energy things such as stars and other big things have.

Answer 7

when a mass travels at the speed of light it can be completely transformed into energy.

Consider:

mass=1 Kilogram

E=mc2

E=1 Kilogram*300000000

E=(≈9.0 × 10^16joules)

which is enough to supply power for newyork city for years.

BUT unfortunately it is impossible to make mass to travell at the speed of light.

See:Antimatter

Answer 8

An object with mass has energy.

All forms of energy have mass (in both the inertial and gravitational senses--energy weighs something and it takes a push to move it).

So energy and mass are the same exact thing.* We just use different units to measure them (in MKS anyway). The square of the speed of light is the conversion factor we use to convert our units of mass to our units of energy.