The speed of light in a vacuum is 3.00 $\times$ 10⁸ m/s.What is the speed of light in units of kilometers per hour? A) 1.20 $\times$ 10^-2 km/hr B) 8.33 $\times$ 10¹ km/hr C) 8.33 $\times$ 10⁷ km/hr D) 1.08 $\times$ 10⁹ km/hr E) 1.08 $\times$ 10¹⁵ km/hr

Question

Quizplus · Accepted Answer

To convert the speed of light from meters per second to kilometers per hour, multiply by 3.6 (since 1 m/s = 3.6 km/hr). Thus, 3.00 $\times$ 10⁸ m/s $\times$ 3.6 = 1.08 $\times$ 10⁹ km/hr.

The Speed of Light in a Vacuum Is 3 ×\times× 108 M/s

The Speed of Light in a Vacuum Is 3 $\times$ 10⁸ M/s