17.8 Exercise 27

A string has a linear mass density $\mu = 0.007 \text{kg}/\text{m},$ a length $L = 0.70 \text{m},$ a tension of $F_{T} = 110 \text{N} ,$ and oscillates in a mode $n = 3$. (a) What is the frequency of the oscillations? (b) Use the result in the preceding problem to find the change in the frequency when the tension is increased by $1.00 \%$.