Calculating the frequency of a wave

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The discussion revolves around calculating the frequency of a traveling wave given its speed, maximum displacement, and total distance traveled. The wave travels at 44.0 m/s, with a maximum displacement of 18.0 cm and a total distance of 28.0 m. Participants initially calculated the wavelength incorrectly but later determined it to be 16.8 m based on 6 ticks per wavelength. Using the formula frequency = speed/wavelength, the frequency was calculated to be 2.6 Hz. The conversation highlights the importance of accurately determining wavelength to find the correct frequency.
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Homework Statement


A snapshot graph of a traveling wave is shown. The wave is traveling to the right at 44.0 m/s. the maximum displacement is 18.0 cm and the total distance traveled by the wave is 28.0 m
What is the frequency?

Homework Equations


The Attempt at a Solution


total distance traveled/ # ticks = 28 m/10 = 2.8m/tick

There are 7 ticks in one wavelength

7*2.8 = 19.6 m
 

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tascja said:
There are 7 ticks in one wavelength
Do a recount. Once you find the wavelength, how do you calculate the frequency?
 
now it works, thanks :)
** 6 ticks to a wavelength, making it 16.8 m

and then frequency = c/lamba
= 44/16.8
= 2.6 Hz
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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