gc textbook chapter 12 Sound (id: 5a8793f95)

本题目来源于试卷: gc textbook chapter 12 Sound，类别为 通用国际物理

[填空题]
An airplane travels zzspd :0a h)fztg.0: eat Ma:ndca .qltgigd*3 /u(8bh5pu ch 2.3 where the speed of sound is 310 m/s (a) What is the angl 38 5ag/ld.huqt:dip*(b n guce the shock wave makes with the direction of the airplane’s motion?    $^{\circ} $
(b) If the plane is flying at a height of 7100 m, how long after it is directly overhead will a person on the ground hear the shock wave? $\approx$    s (Round to the nearest integer)

参考答案:
空格1: 26±2%  空格2: 21±2% 


本题详细解析:

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