Question

The speed of light is around 6.706×10^8 miles per hour. What is the speed of light in units of miles per second?

Answer 1

1.863×10^5 miles/second

Explanation:

There are 3600 seconds in 1 hour, so the distance traveled in 1 second will be 1/3600 times the distance traveled in 1 hour:

6.706×10^8/(3.6×10^3) ≈ 1.863×10^5 . . . . miles/second