🚀 go-pugleaf

I would very much appreciate if anyone could email me the anwer to
this question.  You would have my lifelong and very sincere gratitude if
you could give me the answer to the following with a brief (if needed)
explanation.  This is not for a school exam or anything (I am very
much out of school.)  Thanks for your help. :)

Q:  A paticular train whistle blows a 440Hz tone at 110 db at 100 ft. 
2nd and 3rd order harmonics are typically at 11% and 0.7% of the primary
tone.  If the train is moving left to right at 32mph and the platform you
are standing on is 150 ft away, what is the lowest pitch of the 3rd
harmonic that you will hear as the train moves away toward the event
horizon, factoring in the Doppler effect?  Wind is 7 knots SSE
(perpendicular to track and coming towards you) and the ambient
temparature is currently 69 F (speed of sound changes with temperature.)

thanks fer yer help

RN

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