Question

Light travels 6.71 x 10^8 miles per hour. What is the rate per second? (hint: there are 3,600 seconds in an hour).

A) 186,216.67 miles per second
B) 18.62 miles per second
C) 1.86 miles per second
D) 0.186 miles per second

Answer 1

The rate of light per second is found by dividing the speed of light (6.71 x 10^8 miles per hour) by the number of seconds in an hour (3,600), resulting in 186,216.67 miles per second, which matches option A.

Step-by-step explanation:

The question asks for the conversion of the speed of light from miles per hour to miles per second.

• Light speed is given as 6.71 x 108 miles per hour.
• 1 hour consists of 3,600 seconds.
• To find the speed of light per second, divide 6.71 x 108 by 3,600.

(6.71 x 108) / (3,600) = 1.863888888 x 105 miles per second.

Therefore, the rate of light per second is closest to option A, 186,216.67 miles per second.