Determines the length of the short axis of the galaxy a to

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An alien pilot of an intergalactic spaceship, on a mission to measure the sizes of galaxies, is traveling at 0.86c relative to the galaxy A. She determines the length of the short axis of the galaxy A to be 2.9 × 1017 km. What would the length of this axis be as measured by an observer living on a planet within the galaxy A?

Reference no: EM13580336

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