Question

A satellite can move at 17,000 miles per hour. how many hours will it take to reach a star that is three light years away? recall that 1 light year = 9.5 ∙ 10^12 kilometers and 1 kilometer = 0.62 miles. show your work.

Answer 1

Distance to the star in light years = 3 * 0.62 * 9.5 * 10^12  =  1.767 * 10^13 miles

dividng this by 17,000  gives  1.039411765 * 10^9 hours