Answer:
The speed of light in a vacuum is 186,282 miles per second
Explanation:
The speed of light in a vacuum, commonly denoted c, is a universal physical constant that is important in many areas of physics.Its exact value is defined as 299 792 458 metres per second (approximately 300 000 km/s or 186 000 mi/s). It is exact because, by international agreement, a meter is defined as the length of the path traveled by light …
kilometers per hour: 1080000000
meters per second: 299792458
miles per hour: 671000000