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Jack 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, Janet,
moving at a speed of 0.25c in the positive x direction also
views the flashes.
I|
i). Determine the time interval between them according to
Janet.
ii). Which flash does she say occurs first?

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