gc textbook chapter 11 Vibrations and Waves (id: 270a9a7d4)

本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 IB物理学

[填空题]
An earthquake P wave travelinge shn-1 fio6if-bj*u)dd)e)x at k.0 km/s strikes a boundary within thexd 9foh :atmd h-o.5j+ Earth between two kinds of material. If iojtodhf. 9max5 h:+d- t approaches the boundary at an incident angle of 47 ${}^{\circ }$ and the angle of refraction is 35 ${}^{\circ }$, what is the speed in the second medium?    km/s

参考答案: 6.3±2%


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