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Physics, 13.07.2021 22:20 Dweath50

A spacecraft moves at 2/5 of the speed of light (.4c) relative to the Earth, when its headlights are turned on. An observer on the Earth will observe the headlights moving at speed .

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A spacecraft moves at 2/5 of the speed of light (.4c) relative to the Earth, when its headlights are...
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