On the planet Arrakis a male ornithoid is flying toward his mate
at a speed of 28.0m/s while singing at a frequency of 1180Hz .
If the stationary female hears the sound at a frequency of 1250Hz ,
what is the speed of sound in the atmosphere of Arrakis?
unit = m/s
Arrakis a male ornithoid
2012-12-02 12:02 am
回答 (1)
2012-12-02 1:26 am
✔ 最佳答案
Use the Doppler Effect formaula:1250 = 1180 x [c/(c - 28)]
where c is the speed of sound in the atmosphere of the planet.
solve for c gives c = 500 m/s
收錄日期: 2021-04-29 17:46:34
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https://hk.answers.yahoo.com/question/index?qid=20121201000051KK00200