Multiple Choice
The astronaut whose heart rate on Earth is 63 beats/min increases his velocity to v = 0.70c.Now what is his heart rate as measured by an Earth observer?
A) 45 beats/min
B) 88 beats/min
C) 19 beats/min
D) 90 beats/min
E) 210 beats/min
Correct Answer:
Verified
Correct Answer:
Verified
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