![.ם75. The pressure in a traveling sound wave is given by the equation. Ap = (1.00) sin π [0.900x-315t] (S units). Find the sound level of the wave (Take the density of air to be pair 1.21 kg/m). (Ans: 90.7 dB)](http://img.homeworklib.com/questions/bdbbcf30-719d-11ea-ac2b-a7494fb6d7a7.png?x-oss-process=image/resize,w_560)
Homework Answers
Concept used:- Here we find the velocity of the
sound first and then using that we find the intensity which gives
the sound level as shown below, 
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.ם75. The pressure in a traveling sound wave is given by...
Chapter 17, Problem 012 The pressure in a traveling sound wave is given by the equation...
Chapter 17, Problem 012 The pressure in a traveling sound wave is given by the equation AP = (1.69 Pa) sin [(0.510 m ) - (666 s-?)t] Find (a) the pressure amplitude, (b) the frequency, (c) the wavelength, and (d) the speed of the wave. (a) Number Units (b) Number Units (c) Number Units (d) Number Units
he pressure in a traveling sound wave is given by the equation ΔP = (1.09 Pa)...
he pressure in a traveling sound wave is given by the equation ΔP = (1.09 Pa) sin [pi (0.810 m-1)x - pi (460 s-1)t] Find (a) the pressure amplitude, (b) the frequency, (c) the wavelength, and (d) the speed of the wave .
4. The variation of pressure in a sound wave is described by the following function p-17...
4. The variation of pressure in a sound wave is described by the following function p-17 sin (6.50x-1 500t + π/2) Nm? where x is in meters and t is in seconds. (a) By comparing to the general form of the functions describing sound waves in Equation 1.6 and in Exercise 1.4, determine the amplitude of the pressure variations, the angular wave number, the angular frequency and the phase angle, giving the correct units for each. Determine (b) the amplitude...
A sound wave traveling in 20°C air has a pressure amplitude of 0.448 Pa. What is...
A sound wave traveling in 20°C air has a pressure amplitude of 0.448 Pa. What is the intensity of the wave? (Assume the density of air is 1.29 kg/m3. Enter your answer in W/m2.) ________W/m2
A sound wave has an intensity level of 123.5 dB in air. The density of air...
A sound wave has an intensity level of 123.5 dB in air. The density of air at 20.0°C is ρ = 1.20 kg/m3. The speed of sound in air at 20.0°C is v = 343 m/s What is the pressure amplitude of the wave? in N/m2
A sound wave traveling in 20ºC air has a pressure amplitude of 0.5 Pa. What is...
A sound wave traveling in 20ºC air has a pressure amplitude of 0.5 Pa. What is the intensity AND sound level of the wave?
Question 4 Suppose that the sound level of a conversation is initially at an angry 70...
Question 4 Suppose that the sound level of a conversation is initially at an angry 70 dB and then drops to a soothing 50 dB. Assuming that the frequency of the sound is 508 Hz, determine the (a) initial and (b) final sound intensities and the (c) initial and (d) final sound wave amplitudes. Assume the speed of sound is 343 m/s and the air density is 1.21 kg/m3. (a) Number Units (b) Number Units (C) Number Units (d) Number...
A 85.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The...
A 85.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at 20.0°C is 1.20 kg/m3. Speed of sound in air at 20.0°C is 343 m/s. What is the displacement amplitude of a 85.0-Hz sound wave?
Suppose that the sound level of a conversation is initially at an angry 71 dB and...
Suppose that the sound level of a conversation is initially at an angry 71 dB and then drops to a soothing 53 dB. Assuming that the frequency of the sound is 506 Hz, determine the (a) initial and (b) final sound intensities and the (c) initial and (d) final sound wave amplitudes. Assume the speed of sound is 347 m/s and the air density is 1.21 kg/m3.
A 72.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The...
A 72.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at 20.0°C is 1.20 kg/m3. Speed of sound in air at 20.0°C is 343 m/s. What is the displacement amplitude of a 72.0-Hz sound wave? Answer in nm
Chapter 17, Problem 012 The pressure in a traveling sound wave is given by the equation AP = (1.69 Pa) sin [(0.510 m ) - (666 s-?)t] Find (a) the pressure amplitude, (b) the frequency, (c) the wavelength, and (d) the speed of the wave. (a) Number Units (b) Number Units (c) Number Units (d) Number Units
4. The variation of pressure in a sound wave is described by the following function p-17 sin (6.50x-1 500t + π/2) Nm? where x is in meters and t is in seconds. (a) By comparing to the general form of the functions describing sound waves in Equation 1.6 and in Exercise 1.4, determine the amplitude of the pressure variations, the angular wave number, the angular frequency and the phase angle, giving the correct units for each. Determine (b) the amplitude...
Question 4 Suppose that the sound level of a conversation is initially at an angry 70 dB and then drops to a soothing 50 dB. Assuming that the frequency of the sound is 508 Hz, determine the (a) initial and (b) final sound intensities and the (c) initial and (d) final sound wave amplitudes. Assume the speed of sound is 343 m/s and the air density is 1.21 kg/m3. (a) Number Units (b) Number Units (C) Number Units (d) Number...
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