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]
On a day when the speed of soe 9gs**vfg4 a5bj:qp qa*zxf: und in air is 340 m/s, a bat emi -aqjph(dx y2vnq4t qc:a/a:,ts a shriek whose echo reaches it 0.0250 s later. How far away wa 2q txj4c:p,n(hq-dva/q :aay s the object that reflected back the sound?
A. $4.25 \; m$
B. $8.50 \; m$
C. $0.425 \; m$
D. $0.850 \; m$
参考答案: A
本题详细解析:
暂无
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