Answer: An astronaut on a spaceship traveling at 0.75c
Chapter 26, Problem 75GP(choose chapter or problem)
Problem 75GP
An astronaut on a spaceship traveling at 0.75c relative to Earth measures his ship to be 23 m long. On the ship, he eats his lunch in 28 min. (a) What length is the spaceship according to observers on Earth? (b) How long does the astronaut’s lunch take to eat according to observers on Earth?
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