11. The intensity of a sound produced by a point source decreases as the square of the distance from the source. Consider a riveter as a point source of sound and assume that the intensities listed in the Table are measured at a distance 1 m away from the source. What is the maximum distance at which the riveter is still audible? (Neglect losses due to energy absorption in the air.)
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A: a) Busy street traffic = 70 dB Close whisper = 20 dB=70-20=50 dBb) Factors on which loudness of…
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A: Ans:- Image-1
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A: Sound level 1 SL1=82 dB=10 logI1I0Sound level 2 SL2=24 dB=10 logI2I0SL1-SL2=82dB-24dB=58…
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A: Since you have asked multiple questions, here the first question is incomplete so we will solve the…
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A: Given: The sound level produce when a person shouts is 85 dB from a distance of 10 m. To determine:…
Q: 10. A stove is connected to a stove pipe of length L=3m. When the wind blows, the pipe sometimes…
A: Given: Length of pipe (L) = 3 m. Speed of sound (v) = 300 m/s.
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A: 13. Given, The intensity of sound delivered by each machine at location of the worker is, I = 21μW…
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Q: 8. A tuning fork emits a 512 Hz sound at the open end of a tube (one end is open, the other one is…
A:
Q: 6. The intensity levels of two people's speech are 63.0 dB and 64.5 dB, respectively. What is the…
A: The 'dB' unit is a logarithmic unit, therefore we can not simply directly add them. We need to use a…
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A: Given:Number of jet engines initially running: Sound intensity level when all the engines are…
Q: 12. A loudspeaker has a round opening with a radius of 9.50 cm. The electrical power needed to…
A: Radius of opening of loudspeaker r=9.5 cm=0.095 m, sound Intensity at the opening I=17.5 W/m2 and…
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A: Given, Sound intensity I=2.40 W/m2 Distance r=1.90 m from the point of impact. Sound intensity…
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A:
Q: 12. Two identical speakers A and B are placed on the y-axis, while a sound detector is placed on the…
A: Let us denote the position of detector as D. So here we have AD=15 m and AB= 2.4 m So the path…
Q: You work at a building site and the noise level has been measured at 95 dB. You need to wear…
A:
Q: A listener triples his distance from a source that emits sound uniformly in all directions. By how…
A: Intensity at distance (d) from the source is calculated aswhere,P is the power sourced is the…
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A:
Q: arks at a sound intensity level of β = 95 dB. a. Another dog runs up beside the first dog and…
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Q: The sound intensity 3.6 m from an isotropically radiating point source is 0.86 W/m². What is the…
A: Power = Intensity × Area P = I × 4πr² P = 0.86 × 4π(3.6)² P = 140.059 W
Q: 1. Ultrasound is sent through a tissue with volume 0.05 L and mass 0.6 kg. The elastic modulus of…
A:
Q: a) A sound wave moves through the air. Its frequency is 522.32 Hz. The air temperature is 11 °C.…
A: Given data Frequency f = 522.32 Hz Air temperature T = 11 deg C We have to calculate the…
Q: Problem 5 A person standing 15.5 m from a point source of sound hears a sound level of 35.2 dB.…
A:
Q: 4. A source emits sound uniformly in all directions. There are no reflections of the sound. At a…
A: Given Intensity of the sound = 5.0 × 10-3 W/m2 Distance of this intensity from source = 12 m We have…
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Q: An observer in a car moving at 14.4 m/s is receding from a stationary sound source which is sounding…
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Q: 6. An organ pipe is 128 cm long. What is the second audible harmonic if the pipe is open at both…
A: Given data: Length (L) = 128 cm = 1.28 m Speed of sound in air (v) = 339 m/s Required: Frequency of…
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A:
Q: A speaker is playing a sound of consistent amplitude at a distance of 3.0 m from your ear. It plays…
A: Intensity of sound is inversely proportional to square of distance from the source
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A:
Q: 13. What is the intensity of a sound wave of amplitude 0.002 dyne/cm2, measured in dB? ( some facts:…
A: The amplitude of a sound wave is, P=0.002 dyne/cm2
Q: 95 The sound intensity is 0.0080 W/m² at a distance of 10 m from an isotropic point source of sound.…
A: Intensity of sound at a distance of 10 m from an isotropic point source of sound = I1I1 = 0.008 Wm2…
Q: 12. What is the length (in meters) of an open-closed tube whose second-lowest resonant sound…
A:
Q: 9. A jet flies toward higher altitude at a constant speed of 1 963 m/s in a direction that makes an…
A: Given, Speed of jet, v=1963 m/s Speed of sound in air, v'=340 m/s Now from the diagram,
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A: Given A machine is tested for sound power at the center of a room. The technician claims that the…
Q: 8. A pipe open only at one end has a fundamental frequency of 246 Hz. A second pipe, initially…
A: Given: The fundamental frequency of pipe is f=246 Hz. The frequency of beat is fb=20 Hz. The speed…
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A: Given: Power of sound of amplifiers in decibel Pa=116 dB , Power of sound of lawn mower in decibel…
Q: Two observers, A and B. If A is at R1 = 59 m away from a sound source and B is at R2 = 6 m away from…
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Q: 56. Suppose that a public address system emits sound uniformly in alldirections and that there are…
A: Distance from the sound source, r=22 m Intensity of the sound at distance r=22 m is I=3.0×10-4W/m2…
Q: 5. What is the 1st harmonic of an organ pipe (closed at one end) that is 0.18 m long? (Assume the…
A: Note:- We’ll answer the first question since the exact one wasn’t specified. Please submit a new…
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A: Given:- The intensity level of the sound is β= 68dB The density of the air is ρ = 1.20 kg/m3 The…
Q: 1. Like most dolphins, "Sparky the Wonder Dolphin" uses echolocation (or sonar) by emitting high…
A:
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