PHYSIZSO Name: Date Practice 14: Waves Part 1. Normal modes of a string A piano tuner stretches a steel piano wire with a tension of 300 N. The steel wire is 0.400 m long and has a mass of Exit} g. a) What is the freq LIEI'I'CV of its fundamental mode of vibration? b} What is the number of the highest harmonic that could be heard by a person who is capable of hearing frequencies up to 100m Hz? Continue next page PHYS1230 Part 2. Mathematical description of a wave A sinusoidal wave with wavelength 0.300 m travels along a string. The maximum transverse speed of a point on the string is 3.00 m/s and the maximum transverse acceleration is 8.90*104m/s?. a) What is the propagation speed v of the wave? b) What is the amplitude A of the wave? N