What is the speed of light?
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4
Explanation:
The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.
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7
Answer:
the speed of light is 299792458 meters per second or
Miles per second: 186000
Miles per hour: 671000000
Kilometres per hour: 1080000000
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