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 通用国际物理

[填空题]
An earthquake P wave traveling at k.0 km/s strikes a boun)u+tkk hnx8x9dary within thezp64rfh a6l feih 0:v: Earth between riff4e6: l:a0phh 6zvtwo kinds of material. If it 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%


本题详细解析:

微信扫一扫，分享更方便