Question

what the speed of light​

Answer 1

Explanation:

The speed of light in vacuum, commonly denoted c, is a universal physical constant that is important in many areas of physics. Its exact value is defined as 299792458 metres per second.

Light from a stationary source travels at 300,000 km/sec (186,000 miles/sec).

Answer 2

Answer:

Light from a stationary source travels at 300,000 km/sec (186,000 miles/sec).

Explanation:

The speed of light in vacuum, commonly denoted c, is a universal physical constant that is important in many areas of physics. Its exact value is defined as 299792458 metres per second.