Since Frequency is given by
f=(T/
)1/2/2L
Where L is length of string
T is tension in string
and
mass per unit length of string
So
Part A.
Tension is proportional to square of frequency
So % change in tension is=(2652-2402)100/(2402)=21.92%
Part B.
Wavength=speed/frequency=343/240=1.43 m
A dulcimer string is supposed to vibrate at 240 Hz. Instead it is vibrating at 265...
Hints:
Doppler Effect:
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Hint for Part A:
Hint for Part B:
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A string vibrates at its third-harmonic frequency
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Im looking for help on number
2! Thanks
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