Question

what is the speed of light?​

Answer 1

Explanation:

299 792 458 m / s

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

Answer 2

Answer:

299 792 458 m / s

or

$3 \times {10}^{8} \frac{m}{s}$