An experimenter arranges to trigger two flashbulbs simultaneously, producing a big flash
Chapter 37, Problem 19(choose chapter or problem)
An experimenter arranges to trigger two flashbulbs simultaneously, producing a big flash located at the origin of his reference frame and a small flash at x 30.0 km. An observer moving at a speed of 0.250c in the positive direction of x also views the flashes. (a) What is the time interval between them according to her? (b) Which flash does she say occurs first?
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