The radius of our galaxy is approximately 3 x 10^20 m. How fast must a spaceship travel so that the crossing the galaxy takes 40 years as measured on board the Ship? How long would the trip take as measured on Earth?

The radius of our galaxy is approximately 3 x 10^20 m. How fast must a spaceship travel so that the crossing the galaxy takes 40 years as measured on board the Ship? How long would the trip take as measured on Earth?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter5: Relativity

Section: Chapter Questions

Problem 31P: A spaceship, 200 m long as. seen on board, moves by the Earth at 0.970c. What is its length as...

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Question

The radius of our galaxy is approximately
3 x 10^20 m. How fast must a spaceship travel so that the
crossing the galaxy takes 40 years as measured on board
the Ship? How long would the trip take as measured on
Earth?

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