Chapter 17, Problem 39EAP

Biologists think that some spiders “tune” strands of their web

to give enhanced response at frequencies corresponding to those at which desirable prey might struggle. Orb spider web silk has a typical diameter of $\text{2}0\mu \text{m}$ , and spider silk has a density of $\text{l3}00\text{ kg}/{\text{m}}^{\text{3}}$ . To have a fundamental frequency at $\text{l}00\text{Hz}$ , to what tension must a spider adjust a $\text{12}-\text{cm}-\text{long}$ strand of silk?