- #1

ddsMom

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## Homework Statement

Tension = 400 N

Mass = 4g

Length = .96m

What is the speed of the wave on a string?

What is the frequency of the 3rd harmonic?

## Homework Equations

v=√T/(m/L)

v=fλ

## The Attempt at a Solution

v=√400N/(.004kg/.96m) = 310m/s...am I correct?

f=v/λ

2nd harmonic f=v/(λ/2) = 310/(.96/2) = 646Hz

3rd harmonic f=v/(λ*2/3) = 646/.64 = 1009Hz

Are my answers correct?

Thank you so much for your input. Really trying to learn this!