The Curiosity Rover has recently landed on Mars and likes to send Twitter updates on its progress. If a tweet is posted 10 minutes after it was sent, how far is Curiosity from Earth? (Assume there is no network lag.)

1.8 * 10^11 m

Explanation:

Given that :

Time taken for tweet to me posted after been sent, t = 10 minutes

t in seconds :

60 seconds = 1 minute

10 minutes = (10 * 60) = 600 seconds

Tweet sent will br transmitted at the speed of light, c = 3 * 10^8 m/s

Recall :

Speed = distance / time

Distance = speed * time

Distance of Curiosity from Earth = (3 * 10^8 * 600)

Distance of curiosity from earth = 1.8 * 10^11 m