E=MC2 explain please?
960079
You've lost the point of the equation.  Squaring the speed of light will give you the energy released, not an enhanced speed of light.
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.
1139014
E=MC2 means energy equals mass times the speed of light squared.  It applies to nuclear reactions because it disproves the Law of Conservation of Matter, which states neither mass nor energy can be destroyed.  In nuclear reactions mass can be converted into energy and vis versa, proven by Einstein's equation, thus causing the Law of Conservation of Matter to be re-written as neither mass nor energy can be destroyed in a chemical reaction.  This was an amazing breakthrough for the scientific world as we came into the nuclear age.
877088
E = hc/λ \nλ = 1.2 x 10^-10 m\nc = 3 x 10^8 m/s\nh = 6.626068 × 10^-34 m2 kg / s\n\nE = 6.626068 × 10-34 * 3 x 10^8 / 1.2 x 10^-10\n\nE = 1.7 x 10^-15 J.
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.
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.
432860
E is for Engergy\nM is for mass\nC is the speed of light in a vacuum\n2 means "squared" or multiplied by itself
1073443
e=mc2 is the Eienstein's famous equation of relativity. This equation only applies to very tiny particles, who can move with the speed of light. 'c' here is the speed of light which is a constant quantity. 'm' is the mass of the tiny parrticle.\nWhen a tiny particle moves with a velocity which is the square of velocity of light, it produces energy.\n\nSo, you might wonder why the solar energy is so poweful that we can even run a car.
294164
Thw formular to use here is Q = mcT where Q = quantity of heat, m = mass, c = specific heat capacity, and T is the change in the temperature, thus here Q = 2.0g*(30-25)*0.90 = 9J. Notice that I sed Joules as the unit.\n\n2.For this one, a law which i cant remember the name right now is nedeed. Here we have C(s)+O2(g)=CO2 Enthalphy -390KJ\nand also Mn(s)+O2(g)=MnO2(s) Enthalphy = -520KJ\nFor this law to be appplied, we have to write the second equation the other way to become MnO2= Mn+O2 Enthalphy = 520KJ. Notice that i changed the sign when i reversed the equation. Then O2 could be canceled out on the left side of the first equation and on the right side of the second equation. This was we are adding. Finally adding, we get MnO2(s)+C(s) = Mn + CO2 Enthalphy = -390KJ+520KJ = 130KJ.\nand thats the correct answer
941720
Doesn't that have something to do with Einstein's e=mc^2?  It sure looks like it.  The rest of seems to be an example of an explanation of the inefficiency of practical mass to energy conversions.  I could be wrong.\n\nOh, by the way:  what are you asking?
250875
All the protons and neutrons are not bound equally strongly to the nucleus.\nI don't think the second or third law of thermodynamics are  involved. It is only a matter of binding energy and E=mc2.
103563
Curiouscat is way kewl.....good answer on her part.\n\nE = mc^2 has been proven valid over and over again. Altho, in science, everything is theory, because someone may come along and find a flaw or correction.\n\nHowever up the present, this equation is rock solid.
1156590
E = energy\nm = mass\nc^2 = speed of light squared\nMass and energy are equivalent.\nThis is a part of theory of relativity of Albert Einstein.\n\nDuring nuclear fission and fusion about 1% mass disappears and an equivalent amount of energy comes free.\n\nDuring annihilisation all mass 'changes' into energy.\nDuring creation of an electron and positron the inverse happens.
1097182
E = mc^2 \nOr energy is equal to mass times the speed of light squared. Albert Einstein's famous formula proves that mass and energy are different manifestations of the same thing, and that a very small amount of mass can be converted into a very large amount of energy. One profound implication of his discovery is that no object with mass can ever go faster than the speed of light.
154286
Hound, did you intend this:\nE=Ea+Eb = (m^2) * (c^4) + (p^2) * (c^2)\nThis makes E = Ea^2 + Eb^2, no?\n\nAlso, an alternate, simple-minded, non-relativistic answer to why does KE = .5MV^2:\nE=F*D (Energy, Force, Distance)\nF=M*A (M is Mass, A is Acceleration)\nE=M*A*D \nD=.5*A*T^2 (T is time)\nV=A*T\nE=M*A*.5*A*(V/A)^2=.5*M*V^2
809521
E=MC2, so universe = infintie mass, Energy= infinite times. \n\nSpeed of light squared is will power.
748491
E = mc2 is an important and well-known equation, which states an equivalence between energy (E) and mass (m), in direct proportion to the square of the speed of light in a vacuum (c2).