Physics Unit26: Special Theory of Relativity (id: c115812b9)

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本题目来源于试卷: Physics Unit26: Special Theory of Relativity，类别为 Generic Physics

[单选题]
How fast would a rocksah o.e-o 5zm olh45o((4z n)3cis sg0l53g/t yswcga et ship have to move to contract to half of its proper lenggss wtgy z() 45l3g/0sia3cnc th (as observed by a stationary object)?

A. $0.50 \; c$
B. $0.65 \; c$
C. $0.78 \; c$
D. $0.87 \; c$


参考答案:  D


本题详细解析: 暂无