Question

The speed of light is 299,792,458 m/s.

a. Express this number in standard form.

a. Express speed of light up to three significant figures.

Answer 1

(a)

$$299,792,458 \rm \:m/s=2.99792458 × 10^8\:\rm m/s$$

(b)

$$299,792,458 \rm \:m/s=3.00 × 10^8\:\rm m/s$$