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## Homework Statement

Derive the expression v = l

_{n}f

_{n}where l

_{n}is the shortest distance between nodes for the n

^{th}harmonic.

## Homework Equations

v = wave speed

l

_{n}= shortest distance between nodes for the n

^{th}harmonic

f

_{n}= frequency of the n

^{th}harmonic

## The Attempt at a Solution

Is it asking me to take the derivative of the wave speed, which I believe would give me the acceleration of the wave?

So,

wave acceleration = 2*l

_{n}

Am I making any sense?