本题目来源于试卷: Physics Unit26: Special Theory of Relativity，类别为 Generic Physics
[单选题]
A set of twins, Andrea and Courtney, are initially 10 ytiy (3v (zucz7ears old. While r2mxi 5ipe:::p7w)yde j(rwk-m szrp0y x i 0/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 re)7:r r2iye:px 0m zp x( iwr sjwm:k5ypeid/-0turns, Courtney 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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Post time 2024-1-14 16:03:04