Physics Unit26: Special Theory of Relativity (id: 1be8c0f14)

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]
The length of a spaceship is 2 ;.ijb3ijet3y;ynus 10ko; cvq1ddn(( m when it is at rest. If the spaceship travels by yov((n dq;o 1ckdu with a speed of 0.70c, 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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