Problem 9: An astronaut has a heartbeat rate of 74 beats per minute when measured on his spaceship, which is traveling at 0.46c with respect to Earth. What would an observer on Earth determine the astronaut's heart rate to be, in beats per minute?

Problem 9: An astronaut has a heartbeat rate of 74 beats per minute when measured on his spaceship, which is traveling at 0.46c with respect to Earth. What would an observer on Earth determine the astronaut's heart rate to be, in beats per minute?

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Problem 9: An astronaut has a heartbeat rate of 74 beats per minute when measured on his spaceship, which is traveling at 0.46c with respect to Earth.

What would an observer on Earth determine the astronaut's heart rate to be, in beats per minute?

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