Best Answer

It is not a variable.

The equation says that the energy contained in any given mass is equivalent to the mass times the velocity of light squared.

Q: Why mass is variable in E mc 2?

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Mass.

E = mc^2

M = mass

The simplest answer is: E is energy, m is mass, and c is the speed of light in a vacuum. But what does this really mean? Well, to be correct, Einstein's full equation is: E^2 = (mc^2)^2 + (pc)^2, where p stands for momentum. This equation applies to much more than the colloquial E = mc^2. It applies to moving objects, explains why mass drops when two atoms join together, and many other relativistic observations. Also, a very important point is that, because both sides of the equation are squared, solving for E (energy) yields to answers, a positive one and a negative one. This realization is what led to the hypothesis and eventually the discovery of anti-matter, which posses negative energy and/or mass.

* E = total energy, * m = mass, * c = the speed of light in a vacuum

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Mass.

e=mc^2 i believe

e=mc^2

E=mc^2

The theory of relativity can help you but not with the equation E=mc^2 E=mc^2 is just a conversion between mass and energy.

Photosynthesis is an example of turning energy into mass. E=mc^2 is how energy is turned into mass.

E=mc^2 states that mass and energy are interchangeable, and that a little bit of mass creates a lot of energy.

E=mc^2 states that mass and energy are interchangeable, and that a little bit of mass creates a lot of energy.

E = mC^2 is Energy = Mass X (Speed of Light,squared)

e=mc^2 energy is equal to (mass) times (the speed of light squared)

E= MC square

Einsteins theory of relativity can answer this. The equation is E=mC^2. This reads e equals m c squared. E is energy, m is mass and every object that has mass has a gravitational pull.