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]
Two speakers are placedves:p1i;xsbdtnv;87pn;o 0 d side by side fl f8bpwy9 8 3z*reb3xand driven by the same 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 to the other speaker? (The sound s 3w89by3f8xpz l f*erbpeed 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
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