SOLUTION: Light travels at approximately 1.86 x 105 miles per second. The Sombrero galaxy is approximately 1.652 x 1020 miles from Earth. How long does light from the Sombrero galaxy take t

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Question 237838: Light travels at approximately 1.86 x 105 miles per second. The Sombrero galaxy is approximately 1.652 x 1020 miles from Earth. How long does light from the Sombrero galaxy take to travel to Earth? Give your answer in terms of seconds. Then convert your answer to years. Express your answer in scientific notation, round to the nearest hundredths place. (d=rt)
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Light travels at approximately 1.86 x 10^5 miles per second.
The Sombrero galaxy is approximately 1.652 x 10^20 miles from Earth.
How long does light from the Sombrero galaxy take to travel to Earth?
Give your answer in terms of seconds. Then convert your answer to years. Express your answer in scientific notation, round to the nearest hundredths place. (d=rt)
:
t = dist/speed
:
%281.625%2810%5E20%29%29%2F%281.86%2810%5E5%29%29 = .8737%2810%5E%2820-5%29%29 = .8737%2810%5E15%29 = 8.737%2810%5E14%29 Seconds
:
Convert to yrs. 1 yr = 3600*24*365 = 3.1536%2810%5E7%29 sec
%288.737%2810%5E14%29%29%2F%283.1536%2810%5E7%29%29 = 2.77%2810%5E%2814-7%29%29 = 2.77%2810%5E7%29 yrs