One convenient statement of the distance traveled by light over very short times is that the speed of light is about "a foot per nanosecond." The speed of light is 3 × 10⁸ m/s.What,then,is a nanosecond?
A) 10-⁷ seconds
B) 10-⁹ seconds
C) 10-¹² seconds
D) 10-¹⁵ seconds

Question

Quizplus · Accepted Answer

A nanosecond is a unit of time equal to one billionth of a second (10-⁹), which is the closest option to a foot per nanosecond when using the speed of light in meters per second.

One Convenient Statement of the Distance Traveled by Light Over