The astronaut whose heart rate on Earth is 60 beats/min increases his velocity to v = 0.60c.Now what is his heart rate as measured by an Earth observer?
A) 100 beats/min
B) 75 beats/min
C) 36 beats/min
D) 48 beats/min

Name: The astronaut whose heart rate on Earth is 60 beats/min increases his velocity to v = 0.60c.Now what is his heart rate as measured by an Earth observer? A) 100 beats/min B) 75 beats/min C) 36 beats/min D) 48 beats/min
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Question

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The Answer is D

The Astronaut Whose Heart Rate on Earth Is 60 Beats/min