Chemistry: Dimensional Analysis problem solving question.?

The speed of light is 3.00 x 10^8 meters per second. Other than the sun, the closest star to the earth is Proxima Centauri, which is 2.49 x 10^13 miles away. How many years does it take light to travel from Proxima Centauri to the earth? Assume there are 365 days in a year.
1 answer 1