Physics Unit12: Sound (id: fe91a7609)

本题目来源于试卷: Physics Unit12: Sound，类别为 国际高中通用物理

[单选题]
The intensity level * pikjm u3tc84is 6is wmsh 6vv04:5 dB at a distance 5.00 m from a barking dog. What would :40vv imh6wssbe the intensity level if two identical dogs very close to each other are barking?

A. $65 \; dB$
B. $68 \; dB$
C. $130 \; dB$
D. $136 \; dB$


参考答案:  B


本题详细解析: 暂无

微信扫一扫，分享更方便