gc textbook chapter 11 Vibrations and Waves (id: 806dd8b68)

本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 通用国际物理

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A sound wave is traveling in w;nxlic6 0 m-,2xuq yhi5djyh -arm air when it hits a layer of coldbk4h/qac9h gg:sc 4-dqid d07 , dense air. If the sound wave hitsg4 0k-cdb:s chh q97qagd4/id the cold air interface at an angle of 25${}^{\circ }$, what is the angle of refraction? Assume that the cold air temperature is $-{10}^{\circ }C$. and the warm air temperature is $+{10}^{\circ }C$. The speed of sound as a function of temperature can be approximated by v=(331+0.60T) m/s where T is in $-{10}^{\circ }C$.    ${}^{\circ }$

参考答案: 24±2%


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