Question 223663
speed of light is 3.00X10^8m/sec, how long does it take to travel 2.29x10^11m, the distance from the sun to mars...? 
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d = rt
t = d/r = 2.29E11/3.0E8
t = 0.76333E3 seconds = 7.6333E2 seconds
t = 763 seconds = 12 minutes 43 seconds