A variable-length air column is placed just below a vibrating wirethat is fixed at both ends. The length of the air column open at one end is graduallyincreased from zero until the first position of resonance isobserved at L = 34.0 cm. The wire is 120 cm long and is vibratingin its third harmonic. If the speed of sound in air is 340 m/s, what is the speed of transverse waves in the wire?