Question: a) A light source at x = y = z = 0 emits light pulse to all directions at t = t1. The trajectory of

a) A light source at x = y = z = 0 emits light pulse to all directions at t = t1. The trajectory of a moving observer is x = vt y = L z = 0 . (1) What are the coordinates of the event in the rest frame of the light source that the observer detects the light pulse? (b) With our usual convention between stationary and moving frames, what are the coordinates of the event in the moving frame? (c) Comment on the special case that L = 0.

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