本题目来源于试卷: Physics Unit12: Sound,类别为 通用国际物理
[单选题]
What is the frequency u+rp5epk 73pk(w m2bi heaspb;7 71:gplnru: s7tfbty-rr i0: zxrd by a stationary observer when a train approaches with a speed of 30 m/s. The frequency of the train horp7 ;tir:r- 7s:bz rlu p1gy :n0sx7ftbn is 600 Hz and the speed of sound is 340 m/s.
A. $551 \; Hz$
B. $600 \; Hz$
C. $653 \; Hz$
D. $658 \; Hz$
参考答案: D
本题详细解析:
暂无
|