本题目来源于试卷: Physics Unit12: Sound，类别为 通用国际物理
[单选题]
Two speakers are placed side by side and driven by the s d4 ou1avbt5h)a5aswjitg7+:8 tx8zxd8 bv0 /nua np* cme frequency of 500 Hz. If the distance from a person to one speaker is 5.00 m and the person detects little or no sound, which of the following is a possible the distance from the person tv/a p*gcunis8 a7+d80bwx :tjtz 8n5xo the other speaker? (The sound speed is 340 m/s.)
A. $7.7 \; m$
B. $8.1 \; m$
C. $8.4 \; m$
D. $9.1 \; m$
参考答案: B
本题详细解析:
暂无
| 
