Question

a certain spaceship has a speed of 19,200 mi/h. What is its speed in light years per century?

Answer 1

Answer:

1 light-year = 5.87849981 × 10^12 miles

1 century = 876000 hours

19,200 mi/h

= [ (19,200 / 5.87849981 × 10^12) x 876000 ] light-years per century