Question

An astronomy student is studying the sun. While monitoring her equipment, she observes a solar flare. She then observes the reflection of the solar flare off of a passing satellite and with her equipment she is able to determine that the reflected light arrives from the satellite in t = 5.79 ms.
(a) There are approximately 1609 meters per mile. If the sun is 93 million miles away, how far is the sun in kilometers to two significant figures.

Answer 1

So the path was 5.79ms further? so the distance half that?

d=velocity light*time

Answer 2

5.09 x 108