Without Using Google Or Anything...Do You Understand E=MC2 ??

Question

Alright guys,

Ive always been fascinated with the science and physics realm of things, although most of the time i dont understand the concept of alot of scientific truths and theory's yet i still like to exercise my mind to try and understand it.

But the thing that ive been trying to get my head around lately is E=MC2 and i have watched a short movie about it and have a limited understanding as to what it means, but not a full understanding. I know that energy can be turned into matter and matter into energy and the more momentum something has the more heavier and powerful it becomes....squared.

Is there anyone who understands this equation in depth and if so can u try to explain in simple terms?...so that i might be enlightened as to something that is very relative?

Thanks

Answer 1

energy +mass (something tecnecal ) times 2

Answer 2

This equation tells us that the amount of energy in a given mass, if we could somehow extract it ALL, would equal the Mass times the speed of light squared. So nuclear reactions and chemical reactions (like burning) therefore give off energy (heat and light) relative to the amount of mass that is lost-- mass lost times the speed of light squared.

according to wikipedia:
"According to the equation, the maximum amount of energy "obtainable" from an object to do active work, is the mass of the object multiplied by the square of the speed of light."

Unlike Newtonian physics, where an object at rest has no kinetic energy and may have some types of potential energy, Einstein showed that there is energy in a mass even when it is holding still.

From the way I understand it, mass and energy are interchangeable--if you destroy a mass it would have to turn into radiation. I believe that means that matter and energy are related, and thier relationship is given by this formula.

To understand this, we have to know how matter is put together, and what radiation really is. This delves into the realm of particle physics, which I am interested in, but you asked for a simple explanation, so I won't dig too deep, besides, I'm not that good at the math of it : )

I do understand, however, that the bits that make up the electrons and protons and neurons have to be held together, and the bits that make them up have to be held together too--that represents a lot of energy. When you break those bonds the energy is released. If you break the bonds at a low enough level, you should get pure radiation energy.

Here's a place to start, I'm still reading into it too.

Answer 3

This equation,which is about 100 years old,can be considered as the basic stepping stone to modern science. I am not an expert, nor do I claim to understand this equation in its entirity. However I will try to give an explanation in very simple words.
Every one thinks that this equation gives out how much energy will come out when matter breaks up and turns in to energy and relate it to an atomic bomb. This not entirely true. Although you can get a fair idea of energy involved by the fact that both Hiroshima and Nagasaki were destroyed by matter equivalent to an ounce.Also the entire energy consumed by the city of Newyork in a day is equivalent to the mass of newspaper you are reading daily. This is one part.
The other part which is more basic, was the idea with which Einstien started his quest. In simple words, mass of a body is the measure of resistance to motion and is the same as its inertia. As the speed of the body increases, we need to under stand that mass does not remain the same. We bring in the concept rest mass Mo and mass when in motion M. As the body approaches near to the speed of light the mass increases enormously. When in the limit it equals the speed of light its mass becomes infinite. This is the maths way of telling. The simple way is that as the speed increases it becomes more and more difficult to push it further to incease its speed. And after it reaches the speed of light it is impossible to increase its speed any further. In other words nothing can move faster than light. This is the essence of the meaning of the equation.

Answer 4

While this is a very simple equation, E = MC^2, the underlying equations, while not extremely complex, need a certain understanding of relativistic physics. It is basically derived from the newtonian law
F = ma.

Now this equation, the one we all know an love, is assuming non-relativistic mass properties. When Lorentz contractions and relativity are put into the equation. From this point vector calculus takes charge.

In the end, the equation is defined this way.

E = total energy of the mass
M = rest mass
and through the math, it elegantly simplifies down to

E = MC^2

If the mass were completely converted to energy, then you would have E energy converted.

Answer 5

What it really means is that mass and energy are just different forms of the same thing. Kinda like water and ice are different forms of the same thing. (Fact is, under Special Relativity. time and space are also different forms of the same thing.)

All e = mc² says is that if some amount of mass (m) were converted to energy (e) the amount of energy would be the same as the mass times a constant (since c never changes, c² never changes either). It's really no different than saying cm = m100. Meters times 100 is centimeters.

How you get to these results gets a bit tricky in places, but if you actually pay attention in math and physics classes and *learn* something (besides how to BS your way through the class and get a passing grade ☺) it'll all make sense one of these days.


Doug

Answer 6

This would work best if you can ride the horse without your instructor because she seems to be clashing with you. A good way to train stubborn horses is with the 'ask, tell, remand' method. Ask the horse to trot by using your 'ideal cues',maybe a cluck and squeeze with your legs. If no response, give him a kick and sharply say trot. If still no response kick him and get after him until he trots off. Always ask in this way and you will begin to give him a chance to do the right thing. When you 'demand' something of him, make it unpleasant enough that he never wants you to have to demand from him again. Eventually, he will start to respond on your first try. Always give him three chances. Only give him three chances. Good luck. If you can't ride this horse and school him on your own, talk this method over with the instructor and see what she thinks about it. Ideally, this could help him be more responsive for other riders as well.

Answer 7

The basic principle behind this equation is mass is a function of velocity.

Mass is a function of velocity means that when the speed of any object is increased its mass also increases.

At ordinary speeds with which we are familiar in every day life, we don’t experience this increase in mass.

But this increase in mass is experimentally verified with particles like electrons protons etc, which can be accelerated nearly equal to the velocity of light.

Suppose a body of mass Mo is at rest. If we wish to accelerate it to a velocity V, we must give energy. This energy is used not only to increase its velocity but also to increase its mass. The new mass is Mv.

If the speed is nearly equal to the speed of light, the mass increases to a very huge amount.

The kinetic energy gained by the body of mass Mo, when its speed is increased to V is given by the equation

E = (Mv- Mo) C^2

Thus Kinetic energy = increase in mass times the square of the velocity of light.

In the above equation we have two terms; Mv C^2 and MoC^2.

MoC^2 is the internal energy of the body when it is at rest and MoC^2 is its total energy (including K.E and internal energy) when it is moving with a speed of V.

Thus mass is equivalent to energy and if mass is completely annihilated (destroyed) it will give an energy = mC^2.

Answer 8

it means that mass and energy, which can be converted into one another, are the part and parcel of the daily life,.. One can't think of living without them..
Even the biggest energy source of all , the sun , also has energy by the same method , that is , mass is converted into energy..
You know what , if you gave a kilo of U-238 , not practically though ;-) , a whole township of 5000 persons can live off it for years..
Thing is that when you change 1 amu , ie 1.66 x 10^-27 kg of matter you actually get 931 MeV of energy.. that is one hell lot of energy..
I got this figure, by putting the values in the EINSTEIN's MASS ENERGY EQUIVALENCE,
m=1.66 x 10^-27 kg
c = 3 x 10^8 m/s

this is a huge energy source..

see if this helps...
else contact me..

Answer 9

I tell you how Einstein thought of it:
1)All laws of physics must be the same to any observer has constant velocity and straight direction
2) from that concept in addition to Maxwell Equations of Electromagnetism Einstein deduced that speed of light must be
constant for any observer has constant velocity and straight direction
3)from the invariance of speed of light C and Maxwell equations
as well Einstein deduced that length & time passage varies with velocity
4)from all this in addition to the princple of preservation of momentum during elastic collision Einstein deduced that mass
also varies with velocity
5) Einstein noticed that the increase in moving body's mass is equivelent to the the kinetic energy
6)he deduced that energy which moves a body is actually added
to its mass
7)he deduced from this that mass and energy are two sides of the same coin and they can be converted to each other
but the mass energy interchanging has practically proven from
nuclear physics ( the binding energy of the particles inside any atom's nucle is substracted from nucle's mass)

Answer 10

E = mc2 means that the nuclear energy of a molecule equals its mass times the speed of light squared. So the more massive a compound is, the more energy it has. Mass is the only variable, sinc ehte speed of light is a constant.

Answer 11

E=MC2 is the most beautiful,simplest equation in the world.

it means that energy is = to matter,and the ratio is C[the speed of light]2

matter is condensed energy,energy is dispersed matter.its all the same "stuff".from lead blocks to motion,its all the same and can become each other.

on the subject of mass gain,when something moves,it gains kinetic energy.energy =matter=more mass.even when i type my fingers gain mass