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Title: A bat emits a sound at a frequency of 39.0 kHz as it approaches a wall. The bat detects beats with a ... Post by: Chery on Dec 5, 2016 A bat emits a sound at a frequency of 39.0 kHz as it approaches a wall. The bat detects beats with a frequency of 827 Hz between the sound it emits and the echo bouncing from the wall. What is the speed of the bat if the speed of sound in air is 343 m/s?
A) 2.7 m/s B) 3.0 m/s C) 3.6 m/s D) 5.4 m/s E) 9.0 m/s Title: Re: A bat emits a sound at a frequency of 39.0 kHz as it approaches a wall. The bat detects beats ... Post by: HotMath on Dec 5, 2016 Content hidden
Title: Re: A bat emits a sound at a frequency of 39.0 kHz as it approaches a wall. The bat detects beats with a ... Post by: Chery on Jan 13, 2017 Thanks a million
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