The inertial reference frame S’ moves at speed v = 0.9c relative to the referenc...
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The inertial reference frame S’ moves at speed v = 0.9c relative to the reference frame S. An observer in S measures the time T between the appearance of two flashes of light in S’. These events are simultaneous in S’ with a measured proper time T0 = 0.436 s. Calculate T. (Tick the right answer, 3 pts, 4 minutes)