How do you apply E=mc2?

Question

How is this equation applied, E=mc2? Do you agree that it is simple yet very profound?
Has it been proven true at every level, quantum level, atomic level, molecular level, Newtonian (everyday life) level, and astrophysics level?

Answer 1

E = mc^2

E = Energy
M = Mass
C = The speed of light. (Roughly 300,000,000 meters per second).

c^2 is really big (9 with 16 zeros). The equation shows that matter is packed with a nearly incomprehensible amount of energy. As others have said, the mass/energy equivalency has many implications. In a nuclear reaction a very tiny portion of the total mass in the reaction is coverted into energy - by our standards the results are still tremendous. A more stunning example is when matter and antimatter meet, resulting in total 'annhilation' or the complete conversion of mass into energy. Luckily antimatter (thus far) is extraordinarily difficult to make (and even harder to keep).

While this is undoubtedly the most famous of Einstein's results, the theory of Relativity demonstrates many other fascinating principles. For instance, 'time dilation' is another facet of Special Relativity that shows a correlation between the speed you are traveling and the passage of time. Time is also affected by gravitational fields - so amazingly enough, time passes at a slightly different rate on the international space station than it does here on the Earth's surface. If you could travel on a beam of light you would see the beginning and end of the universe at once.

Relativity has withstood nearly 100 years of experimental scrutiny without a single contradiction. However, absolute proof is impossible in any field outside of axiomatic mathematics - and even then, your starting points (your axioms) are assumed to be true and self-evident.

Generally, however, careful experimental procedure and theoretical work can show beyond a resonable doubt that a theory is correct. If Relativity ever falls, it is more likely that it will still be 'true' for a subset of the physical universe, just as Newton's laws are true for low velocity (and low energy) systems. That is to say, unless you're moving near the speed of light you don't even need to use relativistic corrections, and can stick with Newton's 400 year old theory to understand and predict motion.

Answer 2

nope, that's appropriate to all resources of ability. take kinetic ability for an party, the more effective kinetic ability an merchandise has relative to you, the more effective huge that's than at the same time as that's at relax (this comes from the numerous times forgetten lorentz component). it in some circumstances helps to imagine of the relation not as a predictor of how a lot ability you receives out of a reaction, yet to view it as an equivalence between mass and ability. what it extremely says is that ability and mass are a similar element, in reality at the same time as calculating with particular relativity we typically use contraptions the position the speed of sunshine is a million and the formulation then reads E=m (plus the lorentz component, yet you get the concept).

Answer 3

The equation E=mc^2 is but one result of Einstein's Theory of Relativity. The theory as a whole has vast implications in many fields in science.

E=mc^2 has been shown to be true in all phenomena so far, but scientific knowledge is always changing. There are some unresolved quirks in the Theory of Relativity (such as resolving it with quantum physics), so who knows.

Answer 4

Its very hard to prove this equation. If you take a mass, say 1gram, and multiply it by the speed of light (3x10^8) squared, that's how much energy is stored in that mass. So, when we "destroy" a very small amout of mass you get a lot of energy (as evidenced by the atmoic bomb).

It is very simple and very profound. There may be more to it, but it links the laws of conservation of mass and energy which is very profound.

Has it been proven at every level? I doubt it, I don't think we've been able to prove it on the astronomical level, but from nuclear weapons and power I'd say its been proven on the everyday scale, and perhaps experiments into subatomic particles have proven it on those scales.

Answer 5

e=mc^2

for example if i had an atomic bomb that weighed 100 tons,

and i when i droped the bomb, and let say it exploded.

and then i gather all the remains of the bomb, the carbon, the air, the vapor, the radioactive stuff, the plasma, and put it all back together (although physicaly impossible to do) and I get 95 tons.

that means 5 tons of mass became pure energy, and with e=mc^2 you can calculate the amount of energy it produced due to the amount of mass it lossed.

Answer 6

Once mass was considered to be conserved and energy was considered to be conserved. Now mass is consdidered to be a function of speed. That is it changes with speed.

The equation gives the relation between mass and energy.

It has been proved in all levels.

Answer 7

im not sure what your asking but what it means is that anything with enregy engery has mass there for light has mass and thats why light curves around plants at a certain angle

it is also why light will not make it out of a blackhole there fore if someone made it into the worm whole in time and space no one would know it!

Answer 8

Yes I agree. It tells you that energy has mass. If you increase the energy content of a lump of material, say by heating it or making it spin or if you accelerate it, then it becomes heavier. Say you heat up a large block of metal; you increase its heat energy by 10^12 joules. Then its mass increases by 10^12 joules/c^2 kg. That's 10^12/9x10^16=1.1x10^-8 kg, which is a very small mass increase. If you can find a way to do the opposite, to convert mass into energy, then a very small amount of mass will give you a very large amount of energy.

Answer 9

E (enerergy of a given event) equals M (mass of the observed) multiplied by the C (constant of 'it') squared

Simple, yet profound, like many things.

Answer 10

Punch some one in the face=Emc2