An advanced civilization has developed a spaceship that goes, with respect to the
Chapter 33, Problem 46(choose chapter or problem)
An advanced civilization has developed a spaceship that goes, with respect to the galaxy, only 50 km/s slower than light. (a) According to the ships crew, how long does it take to cross the galaxys 100,000-ly diameter? (b) Whats the galactic diameter measured in the ships reference frame?
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