Calculating the frequency of a wave

[tascja]

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

 

[Doc Al]

There are 7 ticks in one wavelength

Do a recount. Once you find the wavelength, how do you calculate the frequency?

 

[tascja]

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