The sound intensity level inside a typical modern airliner in flight is 66.0 dB. The air in the cabin has density 0.920 kg/m³ (less than in the atmosphere at sea level) and speed of sound 344 m/s. What is the pressure amplitude of this sound?
Q: The sound intensity of two alarms is detected at a particular point. The first alarm has an…
A: Given: The intensity of first alarm (I1) = 103.7 W/m2. Intensity of second alarm is 11 dB louder…
Q: A blue whale can emit sound at a sound intensity level of 188 dB. The typical human shout has a…
A: Sound intensity is a measure of the amount of sound energy that passes through a unit area in a unit…
Q: The human ear can detect a minimum intensity of Io = 10-12 W/m2, which has a sound intensity of 0…
A:
Q: A jet engine emits sound uniformly in all directions, radiating an acoustic power of 2.19 x 10 W.…
A: The intensity of the sound at a distance is given by,I=PA......(1)where, I is the intensity of sound…
Q: By what factor k must the sound intensity be increased to increase the sound intensity level by 12.9…
A: Given Data, The increment in sound intensity level (∆β)=12.9 dB
Q: A loudspeaker has a circular opening with a radius of 0.08508 m. The electrical power needed to…
A: Radius of circular opening is Electrical power is Intensity of sound at the opening is Find:What…
Q: e 30 m away is 100 dB. What is the sound intensity in W/m^
A: Given:- The distance d = 30 m The level of sound of jet airplane L = 100 dB Find:- The Sound…
Q: The speed of sound in room temperature (20°C) air is 343 m/s; in room temperature helium, it is 1010…
A:
Q: A jet engine emits sound uniformly in all directions, radiating an acoustic power of 3.13×105 W.…
A: Given data Radiation of acoustic power is P=3.13×105 W Distance between the source and the engine…
Q: The longitudinal displacement of a mass element in a medium as a sound wave passes through it is…
A:
Q: True or False: The intensity of a 75 dB sound is calculated: e^7.5x10^−12 W/m2
A:
Q: The African cicada is the world’s loudest insect, producing a sound intensity level of 107 dB at a…
A:
Q: The vocal tract of a human can be thought of as a tube open at one end. If the length of the tube is…
A:
Q: What is the speed of sound, in the unit of m/s, in a medium that has density of ρ = 792 kg/m3 and…
A: Answer- speed of sound is 1019.383 m/s Solution-
Q: You work at a building site and the noise level has been measured at 95 dB. You need to wear…
A:
Q: You work at a building site and the noise level has been measured at 95 dB. You need to wear…
A:
Q: What sound level in dB is produced by earphones that create an intensity of 6.00 ✕ 10−2 W/m2?
A: Given Sound intensity I = 6.00 ✕ 10−2 W/m2 Loudness of sound in dB is defined as :- L = 10…
Q: A sound wave from a siren has an intensity of 89.1 W/m2 at a certain point, and a second sound wave…
A: Given:Intensity,I=89.1 W/m2Intensity level= 10 dB Find he intensity level of the sound wave due to…
Q: A point source emits sound isotropically. The sound intensity is 0.02 W/m² at a distance of 7 m from…
A:
Q: A sound wave is traveling in seawater, where the adiabatic bulk modulus and density are 2.31 x 10°…
A: Given data: Bulk modulus, K=2.31×109 Pa Density, ρ=1025 kg/m3 Wavelength of the sound, λ=3.22 m…
Q: A loud factory machine produces sound having a displacement amplitude in air of 1.00 μmμm, but the…
A: Given:displacement amplitude of air molecules, A= 1×10−6 mmax pressure amplitude, Po = 10.0 Pabulk…
Q: A 3.00 m long air column is open at both ends. The frequency of a certain harmonic is 410 Hz, and…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies…
A: Answer:- The hearing aid increase the intensity of sound level 34.2 dB or has a gain 34.2 dB . The…
Q: You like to listen to music at a sound intensity of 3.3×10−53.3×10−5 W/m2. What is the intensity…
A: Given: The intensity of the sound is 3.3x10-5 W/m2. The intensity of sound for threshold hearing is…
Q: A 1.8-m long gas column that is open at one end and closed at the other end has a fundamental…
A:
Q: A 1.9-m long gas column that is open at one end and closed at the other end has a fundamental…
A: Given Length of the pipe is given as l=1.9 m Fundamental frequency is given as f0=67.0 Hz The pipe…
Q: As a jet plane takes off, at 5.0 m the sound wave intensity is 100 W/m². An observer stands 120 m…
A: The given data we have: Sound intensity at 5 m from the plane: 100 W/m2 The objective is to…
Q: f a sound that has a level 3.00 dB lower than a 3.33 ✕ 10−9 W/m2 sound? (b)
A: Givenβ=3 dB
Q: A sound wave of the form s = Sm cos(kx - wt + p) travels at 344 m/s through air in a long horizontal…
A: Given v=344m/s s=6.00nm , x=2.03m s=2.30 nm , x=2.08 m Since s is max at x=2.03 m, then sm=6.00nm…
Q: If 10 W/m² corresponds to 160 dB, what is the sound intensity level, in decibels, of ultrasound with…
A:
Q: the output power of a spherically symmetric sound source is 6.0 W. the decibel level at a distance d…
A:
Q: A sound wave having a frequency of 345 Hz travels through air at 20 °C. The decibel level at a…
A: Given: Frequency of sound waves = 345 Hz Decibel level at distance 16.3 m = 86.5 dB Density of air =…
Q: A 38.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at…
A: The frequency of the sound wave is f=38.0 Hz The sound intensity level is L=60 dB The density of air…
Q: What is the speed of sound in benzene, which has a bulk modulus of 1.05 x 109 Pa and a density of…
A: The speed(v) of sound in a material depends on the bulk modulus (B) and the density(ρ) of the medium…
Q: Thank you! A 77.8-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density…
A:
Q: A guitar string produces a musical note with a wavelength of 78.0 cm. If the speed of the sound in…
A:
Q: The speed of sound in a certain monatomic gas is 320 m/s at room temperature (20℃). What gas is…
A: Speed of sound in the monoatomic gas: Temperature:
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- The sound intensity of a conversation at a distance of 6.0 m is 1.7 x 10^-7 W/m2. Determine the intensity at a distance of 5.0 m. Assume that the sound propagates uniformly in all directions.The higher frequency limit for human hearing is 23.9 kHz. If the air temperature is 12.2 °C, the corresponding wavelength (mm; millimeter) of the sound is:A sound wave represented by A = 0.0613 sin (2.81x - 978t). The density of air is 1.20 kg/m3. What is the maximum displacement of the air molecules? (b) What is the temperature of the air?
- The difference in two sound levels, β1 and β2, in decibels (dB), is given by the logarithmic equationβ2 − β1 = 10 log ( I2/,I1) where I2/I1 is the ratio of their intensities. a) The sound level of a jet at take off is 140 dB, while the level of a normal conversation is 50 dB. What is the ratio of the intensities of the sound level of the jet versus the level of normal conversation? b) What is the loudness of a jackhammer (in use) if it is known that this sound has anintensity 10 times that of sound due to heavy city traffic (90 dB)?A sound wave traveling in 22 °C air has a sound intensity of 25 × 10-3 W/m2 Part (a) Assuming the density of air at this temperature is 1.19 kg/m3, what is the pressure variation of this sound wave in N/m2? Part (b) Calculate the sound intensity level in decibels.The speed of sound in air is 340 m/s, and the density of air is 1.2 kg/m³. If the displacement amplitude of a 440-Hz sound wave is 10 μm, what is the intensity of the wave? O 0.16 W/m² O 0.32 W/m² O 12 W/m² O 16 W/m² O 32 W/m²
- A sound wave has an intensity level of 121.3 dB in air. The density of air at 20.0°C is ρ = 1.20 kg/m3 (see Table 9.1). The speed of sound in air at 20.0°C is v = 343 m/s (see Table 12.1). What is the pressure amplitude of the wave?The speed of sound in room temperature (20°C) air is 343 m/s; in room temperature helium, it is 1010 m/s. The fundamental frequency of an open-closed tube is 315 Hz when the tube is filled with air. What is the fundamental frequency if the air is replaced with helium?Problem #4: What sound intensity level in dB is produced by earphones that create an intensity of 4.00 x 10-2 W/m2? Problem #5: What is the intensity of a sound that has a level 7.00 dB lower than a 4.00 × 10–9 W/m2 sound? Problem #6: What is the intensity of a sound that is 3.00 dB higher than a 4.00 × 10–9 W/m2 sound? Problem #7: If a large housefly 3.0 m away from you makes a noise of 40.0 dB, what is the noise level of 1000 flies at that distance, assuming interference has a negligible effect?
- A round speaker emits sound waves uniformly in all direction. At a distance of 40.0m from the speaker, the sound intensity is 35 dB. What is the sound intensity level in a distance of 10.0m.A sound wave having a frequency of 266 Hz travels through air at 20 °C. The decibel level at a distance of 21.3 m from the source is measured to be 77.4 dB. What is the maximum displacement of air molecules at that location? Assume the density of air is 1.20 kg/m³ and that the source produces spherical wave fronts. Express the displacement as a number having the units of mirco meters. 1 micro meter = 1 x 10-6 m. For example, If your calculated answer were 1.873 x 10-7 m, your entry would be the number 0.187 7.13Calculate the frequency of a sound wave in helium if its displacement amplitude is 3.6 x 10-10 m and the pressure amplitude is 7.2 x 10-5 N/m². The density of helium is 0.166 kg/m³ and the speed of sound in helium is 2660 m/s. Answer in units of Hz.