A star is 40.0 light-years from Earth (1 light-year is the distance that light travels in 1 year). (a) How far would you measure this distance to be if you traveled it in a spaceship moving at 1.00 x 10^8  m/s? (b) How long would the trip last (for you)?

Astronomy
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Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
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Chapter19: Celestial Distances
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Problem 7E: While a meter is the fundamental unit of length, most distances traveled by humans are measured in...
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 A star is 40.0 light-years from Earth (1 light-year is the distance that light travels in 1 year).
(a) How far would you measure this distance to be if you traveled it in a spaceship moving at
1.00 x 10^8
 m/s? (b) How long would the trip last (for you)?

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