Counting atoms, please I put this question two times already and nobody has got it.
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Physics, 21.06.2019 15:20
If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?
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Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.
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