Sirius is about 9.0 light-years from Earth. (a) To reach the star by spaceship in 12 years
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(a) To reach the star by spaceship in 12 years (ship time), how fast must you travel?
(b) How long would the trip take according to an Earth-based observer?
(c) How far is the trip according to you?
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a Calling v the speed of the ship relative to Earth the Earth time is D t ...View the full answer
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