gc textbook chapter 12 Sound (id: dbf38014a)

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]
The Doppler effect using ultrau2sh1o6z9 h /cvv ae7- oj3knasogy0cd+)rdua(z .v7i g nic waves of frequency $2.25 \times10^{ 6}$Hz is used to monitor the heartbeat of a fetus. A (maximum) beat frequency of 500 Hz is observed. Assuming that the speed of sound in tissue is $1.54 \times10^{3 }$ m/s calculate the maximum velocity of the surface of the beating heart.    m/s

参考答案: 0.171±2%


本题详细解析:

微信扫一扫，分享更方便