Question

Earth is approximately 1.5x10^8 km from the sun. The speed of light is 3.0x10^8. How many minutes does it take for light to reach earth from the sun?

Answer 1

1.5 x 10
`^(8)` mm = 1500 x 10
`^(8)` m

1500 x 10
`^(8)` / ( 3.0 x 10
`^(8)` ) = 500 s

500/60 = 8.3

So approximately it takes 8.5 minutes


Hope that helps, Good luck! (: