The sound from a trumpet radiates uniformly in alldirections in 20°C air. At a distance of 5.00 m from the trumpet thesound intensity level is 52.0 dB. The frequency is 587 Hz. What is the displacementamplitude?

Q: A point source emit 30.0w of sound isotropically. A small microphone intercept the sound in an area…

A: Intensity I=PowerAreaSince the sound is emitted isotropically by a point source,we are going to have…

Q: An observer records a sound intensity of 18 W/m2 at 100 cm from a speaker. At what distance does he…

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Q: For a 171Hz plane traveling wave in air with a sound pressure level of 40 dB re 20 pPa, find (a)the…

A: For a 171Hz plane traveling wave in air with a sound pressure level of 40 dB re 20 pPa

Q: The human ear can detect a minimum intensity of Io = 10-12 W/m2, which has a sound intensity of 0…

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Q: A baby’s mouth is 30 cm from her father’s ear and 1.50 mfrom her mother’s ear. What is the…

A: Let r1 be the the distance between the baby's mouth and mother's ear while r2 be the distance…

Q: A plane harmonic sound wave of amplitude 15 mPa propagates in air (ρ= 1.2 kg/m3) at 21 °C, with a…

A: The pressure amplitude of the wave given as, Δp=15 mPa (or) Δp=15×10-3 Pa. The density of the air is…

Q: High‑intensity focused ultrasound (HIFU) is one treatment for certain types of cancer. During the…

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Q: Suppose the purr of a cat has a sound intensity that is 240 times greater than the threshold level.…

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Q: At a height of twelve meters above the surface of a freshwater lake, a sound pulse is generated. The…

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Q: Calculate the acoustic sound intensity level in decibels for a sound wave travelling in air at 10…

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Q: What is the SPL 50 meters from a 10 W monopole source emitting a continuous 2 kHz tone in seawater…

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Q: A violinist places her finger so that the vibratingsection of a 1.0g/m string has a length of30cm,…

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Q: A small source of sound waves emits uniformly in all directions.The total power output of the source…

A: Let P denotes the power of the source, r denotes the distance, I1 denotes the intensity, B1 denotes…

Q: A siren emitting a frequency of 400 Hz is moving towards a person with a velocity of 74.0 km/h. What…

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Q: A sound level meter 5.0 m from a jet engine measures 130.0 dB. The sound power output of the jet…

A: Given: The distance of the sound level meter is r = 5 m The sound intensity in decibel is given as…

Q: A sound wave in air has a pressure amplitude of 4.00 Pa and a frequency of 5.00 kHz. Take P  0 at…

A: Given: Pressure amplitude for a sound wave is pmax=4 Pa when x=0. Frequency of the sound wave is…

Q: An organ pipe can resonate at 282 Hz and 470 Hz but not at any frequencies between these. What is…

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Q: A string has mass per unit length 0.00900 grams/cm. The speed of transverse waves on the string is…

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Q: The middle C string on a piano is under a tension of 951 N. The period and wavelength of a wave on…

A: Given,

Q: A 256 Hz sound wave in air (density 1.20 kg/m3, speed ofsound 344 m/s) has intensity 5.50 * 10-8…

A: Part (a) Given: The frequency of sound wave is f=256 Hz. The density of the sound wave is ρ=1.20…

Q: Two transverse sinusoidal waves combining in a string are described by the wave functions y1 = 0.02…

A: Both the superposing waves are opposing each other Hence, the resultant wave due to the…

Q: The intensity of sound a distance r = 0.2m from the source is 5.2WIM².What is the intensity level…

A: SOLUTION AS

Q: In a sinusoidal sound wave of moderate loudness, the maximumpressure variations are about 3.0 * 10-2…

A: Given values: Speed of sound, v=344 ms , Bulk modulus, B=1.42×105 pa, Frequency, f=1000 Hz.

Q: The sound intensity level inside a typical modern airliner inflight is 66.0 dB. The air in the cabin…

A: Sound intensity level = 66.0dBAir in the cabin (density)=0.920 kg/m3speed of sound = 344…

Q: A certain stretched string has a fundamental frequency of 100Hz. By what factor must it’s lenght,…

A: Frequency is given by,

Q: If the sound level in a place increased from 50dB to 60dB, by what factor has the actual intensity…

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Q: The ultra-sound wave propagates in water with the density 1000 kg/m^3 and the sound velocity 1500…

A: The intensity of a sound wave is related to the pressure it creates while propagating in the medium…

Q: For a person with defective hearing ability, hearing aid is often required. Assume a hearing aid…

A: Given : the intensity of sound picked by hearing aid, I = 5.0 x 10-7 W/m2

Q: Two pure tone waves, both with a frequency of 1 kHz, are moving in opposite directions in air along…

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Q: The sound intensity from a jack hammer breaking concrete is 2.40 W/m2 at a distance of 1.90 m from…

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Q: (a) By what factor must the sound intensity be increased toraise the sound intensity level by 13.0…

A: Given data: The change in sound intensity level is ∆β=13.0 dB. Part (a) The expression for the…

Q: The sound intensity level of 9 m from a large power saw is 89 dB. At what distance(in meters) will…

A: (given) Sound intensity level at distance (r1)= 9 m Power saw β1 = 89 dB More tolerable intensity…

Q: With what tension must a rope with length 2.10 mm and mass 0.115 kgkg be stretched for transverse…

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Q: A standing wave with wavelength d = 1.2 m and frequency f = 50 Hz is generated on a stretched cord.…

A: Given:-               f = 50 Hz               λ =1.2 m               x = 0.5 m

Q: A standing wave, consisting of two pure tone waves both having a frequency of 1 kHz and moving in…

A: Solution: Since the two waves are of equal frequency and opposite directions, they interfere with…

Q: The sound level 23.8 m from a loudspeaker is 66.7 dB. What is the rate at which sound energy is…

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Q: The sound intensity level 3.6-m from a power saw is 101 dB. At what distance will the sound be a…

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Q: If the fundamental frequency of a wave is 330 Hz, what is the frequency of the fifth harmonic and…

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Q: A bell produces sound energy at a rate of 0.3 mW and radiates it uniformly in all directions. What…

A: Given: Power P=0.3 mW, Distance r=20 m. Required: Intensity level β of the wave. The sound energy is…

Q: A wire of mass 0.5 gm and length 0.5 m is under a tension of 2 kg. wt. Calculate the frequencies of…

A: Given information: The mass of the wire (m) = 0.5 gm = 5×10-4 kg The length of the wire (l) = 0.5 m…

Q: Ura Sound imaging Ultrasound Wave to trans ducer emits 2.5 MHZ a orta and recieves 2500974 acrta.…

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