gc textbook chapter 12 Sound (id: 9a2e89d38)

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]
A meteorite traveling 8 zu6ypwd 5 - /2)l7+cgyqjr+vsro(z pfz t9u)e4wr;ke kkpp; *500 m/s strikes the ocean. Determine the shock wave angle k4 t)zu*rekk e; w9pp;it produces
(a) in the air just before entering the ocean, $\approx$    (Round to the nearest integer)
(b) in the water just after entering.    $^{\circ} $
Assume T = 20 $^{\circ} $C

参考答案:
空格1: 120±2%  空格2: 0.48±2% 


本题详细解析:

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