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StarThrower
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An atom is at rest in an inertial reference frame. Suddenly, two photons are emitted from it, at right angles to one another.
What is the relative speed of the photons?
P.S. Assume they depart from the atom at 299792458 meters per second in the atomic frame, as has been found true by experiment.
What is the relative speed of the photons?
P.S. Assume they depart from the atom at 299792458 meters per second in the atomic frame, as has been found true by experiment.
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