g0rdz00
g0rdz00
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E=mc^2 is a expression for rest energy, ie energy a particle would have at v=0. All this energy is due to its mass. Photons are massless but they are not at rest.
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E=mc^2 is a expression for rest energy, ie energy a particle would have at v=0. All this energy is due to its mass. Photons are massless but they are not at rest.