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In Fig. 37-9, observer S detects two flashes of light. A big flash occurs at x1 = 1200 m and, 5.00 µs later, a small flash occurs at x2 = 480 m. As detected by observer S', the two flashes occur at a single coordinate x'.ċ(a) What is the speed parameter of S', and (b) is S' moving in the positive or negative direction of the x axis? To S', (c) which flash occurs first and (d) what is the time interval between the flashes?
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