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Results tagged with speed-of-light
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user 68519
The speed of light is a fundamental universal constant that marks the maximum speed at which energy and information can propagate. Its value is $299792458\frac{\mathrm{m}}{\mathrm{s}}$.
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General Relativity question
If you're standing on earth and your friend is traveling at $0.9c$ in a rocket (relative to the earth), you may think that the rocket is traveling faster. However, from your friend's perspective, you …
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