SOLUTION: The diameter of the Milky Way disc is approximately 9 * 10^20 meters. How long does it take light, traveling at 10^16 m/year to travel across the diameter of the Milky Way?

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Question 84307: The diameter of the Milky Way disc is approximately 9 * 10^20 meters. How long does it take light, traveling at 10^16 m/year to travel across the diameter of the Milky Way?
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
9*10^20/10^16=9*10^4 light years.