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Category > Physics Posted 08 Jul 2017 My Price 4.00

part two

part one

After giving an intense performance, a confused and disoriented flautist has wandered onto the motorway! They are playinga constant 300 Hz tone on their flute and are essentially stationary. If you are driving along the motorway at 100 km h−1 (27.8 m s−1 ),

what is the frequency you hear from the flautist’s instrument before you pass them? (cair= 343 m s−1 .)

Ive come up with the answer 324.3 hz (which is correct)

part two

Coincidentally the horn on your car, which you sound as you narrowly miss the flautist in the above problem, also gives a constant 300 Hz tone. What frequency does the flautist hear before?

^this is what im not understanding (not sure which formula to use)

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SuperTutor
(15)
Status NEW Posted 08 Jul 2017 01:07 AM My Price 4.00

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