iam curious, in the formula e=mc2, what does the e, m, and c stand for???
410856
Engery\nMass\nc is the speed of light (why c? I don't know does anybody else?)
682752
In short, No. E=MC2 is Einsteins formula for explaining the rest energy of a body. Basically how much energy any object contains bundled within its atoms. He created this at the beginning of the 1900's. The first electrical devices were springing up in the 1600's - 1700's.
791590
E = m x c^2,\nso \n\nmass = Energy / c^2 (speed of light squared)
87280
MBrO3-9H2O where M can be Na,K,Li, other +1 cations\n\nIf M is other than these you have to adjust subscripts
158826
The E=mc^2 equations come from Einstein's theory of Special Relativity. Special Relativity concerns the laws of motion and observed properties when objects are travelling very close to the speed of light.\n\nSpecial relativity starts with two premises: the speed of light is constant for all observers, and the laws of physics are the same for all observers. However, observed properties are not necessarily the same.\n\nSay I flew past the Earth in a space ship travelling 99% the speed of light. To me, the space ship is normal, but the Earth would look squished, rotated, and blue with everyone moving slowly. To you, however, Earth would look normal, but the space ship would be squished, rotated, blue and with everyone moving very slowly. (This gets resolved if the space ship turns around - breaking the symmetry - to come home, and results in the famous Twins "Paradox.")\n\nIn describing the laws of motion in the context of special relativity Einstein derived that E = mc^2 -- in other words that mass has a "rest energy."\n\nIf an electron and an anti-matter electron (known as the positron) bump into each other then their is total energy conversion. The mass of two electrons is converted into energy.\n\nIn a fission or fusion bomb the the atomic process (breaking apart a heavy atom, or fusing some light atoms) results in a  much smaller conversion of mass to energy. But still a lot compared with normal explosives.
8321
The theoretical physics equation E = mc2 states a relationship between energy (E) and mass (m) first formulated by Albert Einstein in his 1905 paper "Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig?" ("Does the Inertia of a Body Depend Upon Its Energy Content?", published in Annalen der Physik on September 27), one of the articles now known as his Annus Mirabilis Papers.
1014316
would you like to supply me with some formulas? im out of grade 12 physics and i forgot most of the formulas. trust me from experience, just plug numbers into a formula and things will work\n\nF=mg = ma\nFk=μkN\na= vf^2 - vi^2 / 2d
195947
In Einstein's equation E=mc^2, E stands for energy, m is mass, and c is the speed of light. This theory of relativity helps to explain how we get energy from nuclear reactions, as the mass of atoms and particles themselves are converted into energy.
1164142
F=O \n\nbut if E=MC2 then F=ND3\n\nthen F=ND3, \nsince ND is just [(M+1)(C+1)] \nthen \nF=({[(M+1)(C+1)]}3)\n\n\nOr you could say that\nF=E+1
130040
http://en.wikipedia.org/wiki/E_%28mathematical_constant%29\nfor the significance of e and how it is used, use this link
62455
Einstein's theory: e(energy)=m(mass)c(speed of light) squared so e=mc2
83538
E=m*c*c is one of the most famous formulae that exist. It is actually not the full formula, which is \n\nE^2= (m^2)( c^4) + (p^2 )(c^2)\n\nbut for an object at rest, momentum p=0, so we get the familiar equation. Here c is the speed of light in a vacuum, which is the speed limit for our universe (nothing can go faster than the speed of light, according to the special theory of relativity). \n\nThe equation E=mc^2 describes the amount of energy that can be released when matter of mass m is converted to energy E, as in a nuclear power plant or nuclear weapon. \n\nIt arrived as a consequence of Einstein (and other physicists at that time) considering what would happen if you moved very fast, close to the speed of light. This lead to the special theory of relativity, which made all kinds of wild predictions:\n\n1. As you go faster, your mass increases\n2. As you go faster, you shrink, front to back\n3. As you go faster, time travels slower. \n\nThe details get pretty complicated, but I have attached a PBS web site where you can listen to some interviews with famous physicists about what they think about E=mc^2.
690012
the equation is as simple as the elegant and simple universe.the equation means that any type of energy can be converted into mass and vice versa. it means that at speed of light the enrgy becomes infinite(to accelerate it actually)and thus mass becomes infinite(special relativity)provided the generation of light in both the cases. the actual equation is e(kinetic energy)=mc^2/underroot(1-v^2/c^2).the e=mc^2 equation is still applicable for objects moving or stationary meaning that both the equations are true.
38506
yikes, everyone is giving you the wrong formula. it's not e=mc^2. that would be converting energy into mass and back which is done like when subatomic particles crash into each other really fast and such... the mass dialation formula you are looking for is \nm'= m/sqrt(1-v^2/c^2)\nwhere m' is the mass you would be not moving at the high velocities, m is the mass moving at the high velocities, v is the velocity you're traveling at, c is the speed of light, sqrt means we're square rooting everything in those parenthesis, and ^2 means squared. if you were to plug numbers in for velocity, you can see that this effect is absolutely neglagible unless you are moving very very close to the speed of light. and it is impossible to actually move at the speed of light, because then v^2/c^2 would be 1, and 1-1=0 so you would have a 0 in the denominator of that equation, which is impossible.  that equation is actually very interesting in that it is part of the lorentz factor which also effects time and length. in fact, as you increase speeds close to the speed of light, not only does mass increase, but time moves slower for you and length shrinks.  I've had to derive these equations in physics class, it's very interesting to do it yourself and come up with the equation proving that things like velocity, mass, and length are affected by velocity.  but again, you need to be going very very close to the speed of light for the velocity to have any effect on these things.\n\nas far as practicality, instances of the lorentz factor have been proven. there are these particles that have a certain lifespan before they disintigrate.  so now, we know how fast they are going and we know how long before they disintegrate, so theoretically, we should easily be able to figure out how much distance they cover before they disintigrate, right? but somehow, the particles go a lot farther than they should... if we plug their velocity into the lorentz transformation formula however, and put in how far they should travel (but don't), they we come up with how far they actually do travel.  this proves the validity of the lorentz factor.\n\nthere is no practical application of the mass increase since objects of great mass would require way too much energy to accelerate to speeds great enough to see this effect, so therefore it can't really happen.. if ever it did though, the only thing this mass expansion would serve to do would be to limit time travel. i mean, if time is slowing down for us at high speeds, technically we could make it slow down so much so that it would be going slower for you than everyone else and so you could basically travel forward in time. but if your mass was expanding and length shrinking, then either the pressure would kill you, or your blood would get so dense it couldnt carry oxygen to your cells and that would kill you, so there goes the time travel thing.
969011
You might care to explain what some of the letters are, not all of them have much to do with electronics.\n\nR I guess here is resistance, but what of l m x and s?  Is l for inductance (I think not here), what of s? seconds?\n\nSome of these (all ?) are simpley equations (eg: c=q/E solve for E) would apply whatever C, ! and E stood for.\n\nIn this case if you gave C an arbitar value or 2, Q an arbitrary value of 6 ad E an arbitary value of 3, you would see that C (2) = q (6) / E (2).   So E would be Q/C\n\nThis is usually the I=v/r fourmal where I=current, v=voltage and r=resistance. R=v/I is also the same but the other way around. V=IR is valid also.\n\ny=mx+b?  what electrical formla is that? Again it is easy to solve but I can see nothing to with electronics here. Again try assigning sinple numbers to the letters so that the equation works - then you can re-arrange the sum so it still works:\n\nGive m, x and b a different value: 3, 4+ 5\n\nNow 3*4 +5  = 17\nso Y=17.\n\nNow you can play about with re-arranging your sum:   \n\n5 = 17   -    3 * 4 \n\n5 represents b, 17 represents Y, 3 represents m and 4 represents x\n\nSo swapping numbers for letters:    b=y-mx
947891
E = mc2 states an equivalence between energy (E) and mass (m), in direct proportion to the square of the speed of light in a vacuum (c2). \n\nhttp://www.drphysics.com/syllabus/energy/energy.html\n\nEinstein reasoned that the center of mass of an isolated system doesn't just move on its own. So, the motion of the cylinder must be compensated by the motion of some other mass. Let's assume the light has mass m. Then, Mx=mL, since the cylinder moves x to the left and the light moves L to the right. Substituting the expression for x given above, the equation can be simplified to E=mc2.
1165749
This formula, E=MC2, discovered by Albert Einstein, proposes that when a body has a mass (measured at rest), it has a certain (very large) amount of energy associated with this mass which is given by E=mc2