# A spaceship moves past Earth with a speed of 0.808 c . As it is passing, a person on Earth measures the spaceship’s length to

A spaceship moves past Earth with a speed of 0.808 c . As it is passing, a person on Earth measures the spaceship’s length to be 68.7 m. (a) Determine the spaceship’s proper length (in m). m (b) Determine the time (in s) required for the spaceship to pass a point on Earth as measured by a person on Earth. s (c) Determine the time (in s) required for the spaceship to pass a point on Earth as measured by an astronaut onboard the spaceship.

(550 words)

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