Fiona arranges to trigger two flashbulbs simultaneously, producing a big flash located at the origin of his reference frame and small flash at x = 30.0 km. An observer, Greg, moving at a speed of 0.25c in the positive x direction also views the flashes. i). Determine the time interval between them according to Greg. ii). Which flash does greg say occurs first?

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Q: arranges to trigger two flashbulbs simultaneously, producing a big flash located at the origin of…

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