A 24 cm long wire with a linear density of 16.5 g/m passes across the open end of a 87 cm long open-closed tube of air. If the wire, which is fixed at both ends, vibrates at its fundamental frequency, the sound wave it generates excites the second vibrational mode of the tube of air. Assume the speed of sound is 340 m/s.
What is the fundamental frequency of the wire?
Hz.
What is the wave speed on the wire?
m/s.
What is the tension in the wire?
N.