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Physics Unit26: Special Theory of Relativity (id: 7e3db2c53)

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admin 发表于 2024-2-6 04:59:00 | 显示全部楼层 |阅读模式
本题目来源于试卷: Physics Unit26: Special Theory of Relativity,类别为 通用国际物理

[单选题]
A set of twins, Andrek e *1j1/5qac 7yfzsvba and Courtneyll*h lmxtr50bgv:23wb -aqx2, are initially 10 years old. While Courtney remains on Earth, Andrea rides on a space ship which travels away from Earth at a speed of 0.6c for five years (as measured by Courtney), then turns around and comes back at 0.6c. When Andrea returns, Courtneylw02q*bbv:x5 x-m ahll2r3t g is 20 years old. How old is Andrea upon her return?

A. $10 \; years$
B. $12 \; years$
C. $18 \; years$
D. $20 \; years$


参考答案:  C


本题详细解析: 暂无

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