Length Contraction and Time Dilaton (id: 4f3adc1c7)

本题目来源于试卷: Length Contraction and Time Dilaton，类别为 美国物理杯赛(Physics Bowl)

[单选题]
07.48: How fast must an observer move so that a stationary)w oo-w 2w5lfq object appears to-c(c/ sn.4n +vrv6* autqf bhy be one-half of its n( 6*+.q4vf/ uraysbcc h vtn-proper length?

A. 0.50 c
B. 0.67 c
C. 0.75 c
D. 0.87 c
E. 0.93 c


参考答案:  D


本题详细解析: 暂无

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