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novera

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- Homework Statement
- A string vibrates at its third-harmonic frequency. The amplitude at a point 35 cm from one end is half the maximum amplitude. How long is the string?

- Relevant Equations
- y=Acos(ωt)sin(kx)

I cannot find the correct answer anywhere online and the answer I keep getting is 5.4 (incorrect)

Please show me the process to get to the answer! Thank you

Please show me the process to get to the answer! Thank you