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## Homework Statement

The displacement of a wave traveling in the positive x-direction is [tex]D(x,t) = (3.5cm)sin(2.7x - 124t)[/tex], where x is in m and t is in s.

What are the frequency, wavelength, and speed?

## Homework Equations

## The Attempt at a Solution

Not sure where to start. Can someone point me in the right direction?