Physics Unit12: Sound (id: 28fdc24c9)

本题目来源于试卷: Physics Unit12: Sound，类别为 通用国际物理

[单选题]
The half angle of the conical shock wave produced by a sv 6 70e k4ptab8f5od /cjzyh*yupersonic aircraft is nvp/b )a ;0t(5pikneh$60^{\circ}$. What is the Mach number of the aircraft?

A. 0.87
B. 1.2
C. 1.7
D. 2.0


参考答案:  B


本题详细解析: 暂无

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