Physics, 21.09.2019 05:30 anele22

According to clocks on the ground (system s), streetlights a and b (situated 4 km apart) were both turned on at precisely 8: 00p. m. which one went on first according to an observer on a train (system s') which moves from a to b at 3/5 times the speed of light? how much later (in seconds) did the other light go on?

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According to clocks on the ground (system s), streetlights a and b (situated 4 km apart) were both t...

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