Asked by eugenia

a string 180 cm long resonates in a standing wave that has 3 segments when driven by a 270hz vibrator. What is the speed of the waves on the string?
(answer in book 324 m/s)

frequency = 270 hz
segments of wave = 3
v= f x wave

I don't know what to do.... help....thanks
Answered by Evan
The 3 segments of the wave means that there are 3 crests indicating that the length of the string is actually 3/2 of 1 wavelength or:

Wavelength=(Length)*(2/3)
Answered by Rohit Harani
Yes
Answered by progress
f=270Hz,segment of wave=3,length of string=180cm,wavelength=180*(2/3)=73cm,velocity =270*72
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