A loud factory machine produces sound having a displacementamplitude of 1.00 mm, but the frequency of this sound can be adjusted.In order to prevent ear damage to the workers, the maximum pressureamplitude of the sound waves is limited to 10.0 Pa. Under the conditionsof this factory, the bulk modulus of air is 1.42 * 105 Pa. What is thehighest-frequency sound to which this machine can be adjusted withoutexceeding the prescribed limit? Is this frequency audible to the workers?16.3 • Consider a sound wave in air that has displacement amplitude0.0200 mm. Calculate the pressure amplitude for frequencies of (a) 150 Hz;(b) 1500 Hz; (c) 15,000 Hz. In each case compare the result to the painthreshold, which is 30 Pa.
A loud factory machine produces sound having a displacement
amplitude of 1.00 mm, but the frequency of this sound can be adjusted.
In order to prevent ear damage to the workers, the maximum pressure
amplitude of the sound waves is limited to 10.0 Pa. Under the conditions
of this factory, the bulk modulus of air is 1.42 * 105 Pa. What is the
highest-frequency sound to which this machine can be adjusted without
exceeding the prescribed limit? Is this frequency audible to the workers?
16.3 • Consider a sound wave in air that has displacement amplitude
0.0200 mm. Calculate the pressure amplitude for frequencies of (a) 150 Hz;
(b) 1500 Hz; (c) 15,000 Hz. In each case compare the result to the pain
threshold, which is 30 Pa.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
