Calculating Wavelength of a Harmonic Wave

[sun]

Homework Statement

A harmonic wave is traveling along a rope. It is observed that the oscillator that generates the wave completes 40.0 vibrations in 30.0s. Also, a given maximum travels 425cm along the rope in 10.0s. What is the wavelength?

Homework Equations

v=f(lambda)

The Attempt at a Solution

My problem is understanding what 40.0 vibrations in 30.0s means. Is this a reference to the frequency? 40/30=1.3Hz?

 

[hage567]

Yes, that's the frequency.