your insights on the theoretical explanation of E=Mc^2?

Question

If E=mc^2
then

mass= E/C^2, current speed of light is x meters/sec.
and E energy is in the order of joules

so mass= joules * sec^2 / meters ^2 , so does this imply that in order for mass to exist, time must exist

say time =0, then m = joules *0^2/ meters^2 =0

now consider a graph such as y=2x, obviouly the slope is 2 the rise over the run, impling that we can integrate to get the area under the curve

now going back
Let sec^2 = time for conviniance
and meter^2 = distance

mass = joules *time/ distance

now take the integral of both sides, by using time/ distance slope
integral(mass) = integral(joules*d(time)/d(distance))

mass is constant
joules are constant

so

mass= joules* integral ( dt/dd), dt/dd = instantaneous slope of time over distance

so time and distance are related ?

going back E=mC^2,

so 1/C^2 = integral ( dt/dd)

???

Im intrested in this subject, if you have any derivations or theories plz share :)

Answer 1

wouldn't mass = Joules/m/s ??

And aren't distance and time related by the speed of light?

eg. as the speed of light is the fastet speed...dah dah dah so time may appear to be the same as the speed of light. Also due to time dilation this may be correct (=( forgot word i was going to use.)

Answer 2

In physics, mass-energy equivalence is the concept that all mass has an energy equivalence, and all energy has a mass equivalence. Special relativity expresses this relationship using the mass-energy equivalence formula

E = mc²
where

E = the energy equivalent to the mass (in joules),
m = mass (in kilograms), and
c = the speed of light in a vacuum (celeritas) (in meters per second).
Several definitions of mass in special relativity may be validly used with this formula, but if the energy in the formula is rest energy then the mass must be rest mass or invariant mass.

Origination of the formula is popularly attributed to Albert Einstein in 1905 in what are known as his Annus Mirabilis ("Wonderful Year") Papers, though Einstein was not the first to propose a mass-energy relationship, and the formula appeared in works predating Einstein's theory (see Contributions of others, below).

In the formula, c² is the conversion factor required to convert from units of mass to units of energy, i.e., the energy density. In unit-specific terms, E (joules or kg·m²/s²) = m (kilograms) multiplied by (299,792,458 m/s)2.

MEANINGS

Mass-energy equivalence proposes that when a body has a mass, it has a certain energy equivalence, even "at rest". This is opposed to Newtonian mechanics, in which a massive body at rest has no kinetic energy, and may or may not have other (relatively small) amounts of internal stored energy (such as chemical energy or thermal energy), in addition to any potential energy it may have from its position in a field of force. Thus in relativity theory, a body's rest mass is often called the rest energy of the body. The E of the formula can be seen as the total energy of the body, which is proportional to the mass of the body.

Conversely, a single photon traveling in empty space cannot be considered to have an effective mass, m, according to the mass-energy equivalence formula. Such a photon cannot be measured in any way to be at "rest" and the formula above applies only to single particles when they are at rest, and also systems at rest (i.e., systems when seen from their center of mass frame). Individual photons are generally considered to be "massless", (i.e., they have no rest mass or invariant mass) even though they have varying amounts of energy and relativistic mass. Systems of two or more photons moving in different directions (as for example from an electron-positron annihilation) will have an invariant mass, and the mass-energy equivalence formula will then apply to them, as a system, if the invariant mass is used.

This formula also gives the quantitative relation of the quantity of mass lost from a resting body or a resting system (a system with no net momentum, where invariant mass and relativistic mass are equal), when energy is removed from it, such as in a chemical or a nuclear reaction where heat and light are removed. Then this E could be seen as the energy released or removed, corresponding with a certain amount of relativistic or invariant mass m which is lost, and which corresponds with the removed heat or light. In those cases, the energy released and removed is equal in quantity to the mass lost, times the speed of light squared. Similarly, when energy of any kind is added to a resting body, the increase in the resting mass of the body will be the energy added, divided by the speed of light squared.