Question

accurate speed of light between ??

Answer 1

Answer:

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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Answer 2

Answer:

After centuries of increasingly precise measurements, in 1975 the speed of light was known to be 299 792 458  m/s (983 571 056  ft/s; 186 282.397  mi/s) with a measurement uncertainty of 4   parts per billion.

Explanation:

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