The speed of light is $1.86 \times 10^{5}$ miles/second. How far can light travel in one hour? Round to one decimal place.
A) $6.7 \times 10^{-8}$ miles
B) $6.7 \times 10^{9}$ miles
C) $6.7 \times 10^{8}$ miles
D) $6.7 \times 10^{6}$ miles

Question

Quizplus · Accepted Answer

To find the distance light travels in one hour, multiply the speed of light by the number of seconds in an hour: $1.86 \times 10^{5} \text{ miles/second} \times 3600 \text{ seconds} = 6.696 \times 10^{8} \text{ miles}$, which rounds to $6.7 \times 10^{8}$ miles.

The Speed of Light Is 1.86×1051.86 \times 10^{5}1.86×105 Miles/second 6.7×10−86.7 \times 10^{-8}6.7×10−8

The Speed of Light Is $1.86 \times 10^{5}$ Miles/second $6.7 \times 10^{-8}$