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Homework Statement
The length of a stretched string is 1m. Its mass per length is 2x10-3kg/m. The string resonates at its 4th harmonic at 400Hz.
(a) Calculate the velocity of the string wave.
(b) Calculate the string tension.
Homework Equations
fn = nv / 2L
v² = F / μ
The Attempt at a Solution
I honestly don't know how to go about this.
(a) v = √F / μ will give me the answer I suppose. μ is the linear density, how do I calculate that? Also for F, which is tension, relates to question (b) and I'm totally unsure how to calculate tension.
I don't know what nv stands for either, it's pretty hard to Google nv.
2L is 2 * length of the string, which is 2m.
I need some serious help please!