일반물리학 1 — Waves-I: Problem 17

17 A nylon guitar string has a linear density of 7.20 g/m and is under a tension of 180 N. The fixed supports are distance D = 90.0 cm apart. The string is oscillating in the standing wave pattern shown in Fig. 16-27. Calculate the (a) speed, (b) wavelength, and (c) frequency of the traveling waves whose superposition gives this standing wave.