本题目来源于试卷: Physics Unit26: Special Theory of Relativity，类别为 Generic Physics
[单选题]
The length of a spaceship ek,la+slx pzu- mv/*.is 10 m when it is h6miu)4a1y fdjj/a. y at rest. If the spaceship travels by you with a speed of 0.70c41/ifya j)jmyuh d6.a , what length does it appear to you?
A. $5.5 \; m$
B. $7.1 \; m$
C. $12 \; m$
D. $18 \; m$
参考答案: B
本题详细解析:
暂无
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Post time 2024-1-14 16:03:04