10. A spaceship approaches the earth with a speed 0.50c. A passenger in the spaceship measures his heartbeat as 70
beats per minute. What is his heartbeat rate (beats per minute) according to an observer that is at rest relative to
the earth?
(A) 69,
(B) 73,
(C)80,
(D) 65,
(E) 61.
詳解 (共 2 筆)
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1. 題目解析 題目中提到一艘以速度 0...
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