Can anyone give me the significance of the relation E=mc2 ?
477007
energy = matter at the speed of light celeritas squared
342507
E=mc^2 is a version of Einstein's famous Relativity equation. Specifically, it means that Energy is equal to Mass times the speed of light squared. In essence, it states that there is an equivalence between mass and energy. This simple statement has many profound implications... such as no object with mass can ever go faster than the speed of light!\n\nThe Energy:\nEnergy is measured in joules (J). How much energy is one joule? Not very much really. If you pick up a large apple and raise it above your head you will have used around one joule of energy in the process. On the other hand we use up huge amounts of energy every time we switch on a light. A 100 watt light bulb uses 100 joules of energy every second, i.e. one watt is one joule per second.\n\nThe Mass :\nMass is a measure of a body�s resistance to acceleration. The greater the mass the greater the resistance to acceleration, as anyone who has ever tried to push a heavy object knows. For our purposes here, we can also think of mass as the amount of matter in an object. Mass is measured in kilograms (kg), 1 kg is about the same as 2.2 pounds. Note that we haven�t said what the mass is composed of. In fact it could be anything. It doesn�t matter if we use iron, plastic, wood, rock or gravy. The equation tells us that whatever the mass is it can be turned into energy (whether it is practical to actually do so is another matter and will be dealt with in later pages in this series).\n\nThe speed of light:\nThe speed of light is close to 186,300 miles per second (300,000 km per second). In order to make the equation "work" we need to convert these numbers into units that are more suited to our purposes. In physics, speeds are measured in metres per second. This is usually abbreviated to ms-1; that is "metres times seconds to the minus one". Don�t worry if you don�t understand this notation. We could equally write m/s but using ms-1 makes the mathematics easier in the long run. Likewise, we could either say that the speed of light is 300,000,000 metres per second, or, as is more usual, express the same figure in scientific notation: 3 � 10^8 ms-1.\n I think the mass is dont increase the enrgy is relative with light speed and the mass is constant\nE=constant*C^2\n\nFor a long time the concept of "mass" had been like the concept of energy before the 19th century. There were a lot of different material substances around, but it was not clear how they related to each other, if at all.\n\nAntoine-Laurent Lavoisier, as much as anyone else, first showed that all the seemingly diverse bits of tree and rock and iron on Earth�all the "mass" there is�really were parts of a single connected whole. Through decades of meticulous experiments, aided by his able wife Marie Anne, Lavoisier proved that the substances that fill our universe can be burned, squeezed, shredded, or hammered to bits, but they won't disappear. The different sorts floating around just combine or recombine. The total amount of mass, however, remains the same. This principle�the law of conservation of mass�was one of the great scientific achievements of the 1700s.
1166463
1.  Physics trilogy: E=mc2, m=E/c2, c2=E/m.\n\n2.  All mass and energy forms are wave composites, having the value of "hf" as its basis.\n\n3.  Our physical composition is that of physical time, (c2=E/m) its duration being equal to the value of the chronon, or complete electron wave.  This value disallows travel to either ones own past or future.\n\n4.  If a premise is wrong, a right answer is wrong.\n\n5.  A person goes through life but one time.
819996
T1=m1*a, no matter are there m2 & m3 or not.\nT2=(m1+m2)*a, no matter whether m1 & m2 are connected with a string or are in one lump, the presence of m3 being unimportant too.
114259
In short, yes. But E=mc^2, is so much deeper than chemical reactions. Actually, it relates mass to energy. It lead to the concept of nuclear fission. It says that if you have a small amount mass, say 30 AMUs, and you multiply that by the speed of light squared, you will get a TREMENDOUS AMOUNT OF ENERGY. It was derived in Einstein's paper on relativity in 1905.
475765
oh, wow, this is a physics question.\n\nto start, we remember E = mc^2\nthe problem gives 4 grams matter and 2 grams antimatter.\nmy solution would be that 2 grams of matter and 2 grams of antimatter annihilate to produce 4c^2 (2 + 2 = 4) energy.\nthe excess 2 grams of matter remains unaffected.\nthe answer is D.
475479
here's my guess --\nthat these particles are somehow "connected" . that they do not violate casuality (this one is proveable) or locality....somehow.
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
1001506
Dude! all you have to do is increase the velocity!\nOr Dude! I got it! E= MC2
339047
It is just a reference to E=mc^2.  It can be through fission or fusion, so yes you are surely correct.
953904
No common denominator for the energy in the things you mention except that if it has mass, then it embodies the energy given in E = mc^2\n\nThis applies to ALL matter.
639238
e=mc^2 \n(energy equals mass times the speed of light squared).
458495
The theoretical physics equation E = mc2 states a relationship between energy (E), in whatever form, and mass (m). In this formula, c², the square of the speed of light in vacuum, is the conversion factor required to formally convert from units of mass to units of energy, i.e. the energy per unit mass. In unit specific terms, E (Joules) = M (kilograms) · (299792458 m/s) 2.\n\nThis formula, which was discovered by Albert Einstein, proposes that when a body has a mass (measured at rest), it has a certain (a very large) amount of energy associated with this mass. This is opposed to the 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 or thermal energy), in addition to any potential energy it may have from its position in a field of force. That is why a body's mass, in Einstein's theory, 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 when the body is at rest.\n\nConversely, a single photon travelling in empty space cannot be considered to have an effective mass, m, according to the above equation. The reason is that 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. 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.\n\n\nENERGY=MASS x Speed square \n\n\nbtw  check out my website \n\nhttp://oldman.netfirms.com/
581568
I think your question is wrong.\n\n_\n&#92; MR^2 = Moment of Inertia (I)\n/_\n\nwhere M is the mass of a particle, R is the distance of that particle from the axis of rotation.       \nThe sign before MR^2 means sum, indicating that the quantity MR^2 is to be computed for each particle making up the body, and the results added.
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.
556496
It's the theoretical relationship between energy and mass.  Albert Einstein's famous equation.  It is what nuclear power is based on.
272614
more important is the relation between the mass m and energy E. They are coupled by the relation E = mc2, and because c is very large, the energy equivalence of a given mass is enormous. The change of mass giving an energy change is significant in nuclear reactions, as in reactors or nuclear weapons, and in the stars, where a significant loss of mass accompanies the huge energy release.