gc textbook chapter 12 Sound (id: 2438cbc1e)

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]
You look directly ovey5kf5;8i5u xui uquyi tt,6g: u-4) 8cmpdxn usqn8+brhead and see a plane exactly 1.5 km above the ground flying faster than the speed of sound. By the time you hear the sonic boom, the plane has traveled a horizontal distmuq8cp un 4nx8-) sdb+ance of 2.0 km. See Fig. 12–34. Determine
(a) the angle of the shock cone, $\theta$    $^{\circ} $
(b) the speed of the plane (the Mach number). Assume the speed of sound is 330 m/s   

参考答案:
空格1: 37±2%  空格2: 1.7±2% 


本题详细解析:

微信扫一扫，分享更方便