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Introductory Physics Homework Help
Doppler effect with 2 sound sources
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[QUOTE="papanik, post: 4513059, member: 488858"] [h2]Homework Statement [/h2] A fly is moving with a speed vl=3m/s and a bat is chasing it with vs=5m/s. The bat is emitting a sound with fs=50kHz. They are moving on the same line towards point C which is a source emitting a sound at f'=57Hz. Find the frequency of the total sound the fly is hearing. The fly has a length of 2mm. [h2]Homework Equations[/h2] Doppler effect equation [h2]The Attempt at a Solution[/h2] The fly is hearing from the bat a sound at a frequency f1=(v-vl)*fs/(v+vs)=50.3kHz approximately The fly is also hearing a sound from source C f2=(v+vl)*f'/v=57.5Hz where v=343m/s speed of sound The frequency of the sound the bat is emitting is not influenced by source C and vice versa. Since f1>>f2 the fly will hear two different sounds with discrete frequency The length of the fly i assume that it is not needed in the calculations [/QUOTE]
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Introductory Physics Homework Help
Doppler effect with 2 sound sources
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