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If you sit on it, you will feel it bunch up and spread out underneath you. Time how long it takes between bunchings. This time is called the period. You may need to remove your trousers for a more sensitive measurement.
You also need to measure how fast the wave is travelling. Sit sideways on it, and time how long it takes between a bunching under one buttock and then under the other. This time is the interbuttock consecutive excitation interval. Take the reciprocal, and multiply by your interbuttock separation distance (which you can get from your doctor). The result is the wavespeed.
Now, all you need to do is multiply the period by the wavespeed, and the answer will be the wavelength.
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What is the wavelength's frequency and speed of the longitudinal wave?
This question cannot be answered - without at least some data to calculate !
How do you find the wavelength of a transverse wave?
wave length = wave speed divided by its frequency
How do you find the wave speed from frequency and the wavelenghts?
speed= frqquency*wavelength
How do wavelength and periods relate?
Wavelength*Frequency = Velocity of the wave. or Wavelength/Period = Velocity of the wave.
How do you find the wavelength from wave speed?
draw a triangle and make 3 areas in the triangle. on the top is S or Speed. on the bottom left is F or Frequency. and on the bottom right is a bckwards/upside down Y for Wavelength. then S divided by For Y. and F times Y. will get you wavelength and what you need. draw what i just said.
