Question

To three significant figures, the speed of light is _____.

Answer 1

Step-by-step explanation:

300,000,000 ÷ 3.00 = 100,000,000 = 10^8

So we can write 300,000,000 = 3.00 x 100,000,000 = 3.00 x 10^8.

The speed of light is 3.00 x 10^8 m/s.