A small spherical sound source is radiating 1 watt of single frequency (1000HZ) sound power into free space. Calculate the following at a distance of 0.3m.

Q: How to convert 111 dBSIL to mW/m2

A: Given, Sound level = 111 dBSIL To convert dBSIL to W/m2 we use this conversion as 1 dB = 1 × 10-12…

Q: An isotropically radiating point source of sound has a power output of 903 W. What is the sound…

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Q: The low-frequency speaker of a stereo set has a surface area of 0.06 m2 and produces 1 W of…

A: Given :      Surface area, A1  = 0.06 m 2      Power, P = 1 W     Intensity, I = 0.24 Wm2

Q: The decibel is defined as ten times the logarithm of power gain, expressed as power out over power…

A: Solution:-Given thatdB=10 logPoutPinwhere dB=dBSIL; when Pin=10-12 W/m2dBSIL=1131 W=1000 mW

Q: Your teacher speaks with a sound intensity of 1.5×10−71.5×10−7 W/m2. What is the intensity level in…

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Q: A sound wave in the air has a frequency of 405 Hz. What is the wave length? Calculate for a sound…

A: Speed = frequency × wavelength Case 1 :- frequency = 405 Hz. Speed of sound in air at room…

Q: A loudspeaker is placed near the open end of a pipe length 417 mm closed at its other end. The…

A: Length of pipe (L) = 417 mm = 0.417 m Lowest resonant frequency = 228 Hz

Q: Humans can detect frequencies as high as 20 000 Hz. Assuming the speed of sound in air is 344 m·s−1,…

A: Given: The upper range of hearing: f=20,000 [Hz]=20,000 [s-1] Speed of sound: v=344 [m/s]…

Q: Estimate the speed of sound in air at standard temperature and pressure. The mass of 1 mole of air…

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Q: The wavelength of sound emitted by a source is 1.2m. Calculate the frequency of this sound if its…

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Q: A source of sound has a total emitted power of 300 W. Determine the intensity a distance of 10 m…

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Q: The area of a typical eardrum is about 5.0 x 10 m2 (a) Calculate the sound power (the energy per…

A: We have to use some basic formula here

Q: A standard trumpet has a resonant tube length of 1.4 m and is closed at one end. What are the first…

A: A standard trumpet has a resonant tube of length is l=1.4 mThe tube is closed at one end.In this…

Q: How far must one stand from a 4 mW point sound source if the intensity at that location is at the…

A: Given, Power = 4mW

Q: You hear a sound of  (4.8x10^1) decibels. What is the intensity? Give your answer in microwatts/m2…

A: β = 4.8×10 decibels  Threshold of human hearing is , Io = 1×10-12 W/m²

Q: You are standing 4 m away from a speaker and experience a sound level that is 90 dB. What is the…

A: distance (d) = 4 m sound level = 90 dB

Q: The frequency of G, on the piano is 196.0 Hz. (a) What is the wavelength (in m) of sound with this…

A: Given data as per question frequency   =196Hz

Q: If the frequency of a sound source is doubled, what happens to the wavelength? Assume the speed of…

A: Given data:  A sound source  New frequency (f') = 2f Speed of the sound source is constant.…

Q: The power of the sound produced by the sound source is 10 mW. The observer is at a distance of 2.5 m…

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Q: You hear a sound of (4.0x10^1) decibels. What is the intensity? Give your answer in microwatts/m2…

A: Given data: Intensity level (β) = 4.0 × 101 dB Threshold of hearing (I0) = 1.0×10-12 W/m2  1 μW =…

Q: A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If…

A: Given Data: The initial intensity of a sound is, Ii=2×10-5 W/m2 The amplitude increases the…

Q: The intensity sound level in air is 61 dB. Calculate Pmax if the temperature is 20°C , the density…

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Q: Calculate the frequency of the first overtone of a 2 m pipe closed at one end. Take the speed of…

A: Given: The speed of the sound is 340 m/s. The length of the one-end closed pipe is 2 m.

Q: The intensity of the sound from a certain leaf blower is measured at  25 × 10−2 W/m2.  Find the…

A: The intensity of the sound is I = 25×10-2 W/m2

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: at a distance of 4 m from a fan exerting 50W of mechanical energy, estimate the sound level if the…

A: distance (d) = 4 m Power of fan (P) = 50 W Io = 10-12 Wm2

Q: Calculate the frequency (in Hz) of the fundamental note emitted by an open pipe of length 1.4 m. The…

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Q: What frequency of sound traveling in air at 208C has a wavelength equal to 1.7 m, the average height…

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Q: he intensity sound level in air is 65 dB. Calculate Pmax if the temperature is 20 C, the density of…

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Q: A sound wave propagates in air at 27°C with frequency 4.00 kHz. It passes through a r where the…

A: Given Initial temperature T1 = 27 o C = 27+273 = 300 K Final temperature T2 = 0 o C = 273 K

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: How far must one stand from a 3.8 mW point sound source if the intensity at that location is at the…

A: The threshold intensity for the human ear is 0 DB. that means intensitt is  I = 1.0 x 10-12 w/m2 .

Q: e approxima

A: Given: Temperature is 20oC Frequency is 262 Hz Speed of sound in air is 344 m/s

Q: Fifty metres from an alarm the sound level is 103 dB. To what sound intensity does this correspond…

A: Given, Loudness,

Q: The sound wave propagating through air has a frequency of 1 kHz and a pressure wave amplitude of 10…

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Q: Describe how you would calculate the wavelengths of sounds at the extremes of the audible range, 20…

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Q: A piano tuner uses a tuning fork that emits sound with a frequency of 440 s-1 . Calculate the…

A: Given, Frequency of tuning fork f = 440 s-1  Velocity of sound v = 343 m/s Distance travel by sound…

Q: The following five problems should be calculated on paper, scanned or photographed, and submitted…

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Q: If the sound intensity level of a plane engine is 140 dB above the threshold of hearing. The sound…

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Q: A swarm of 10,000 locusts causes a sound of intensity level 75 dB. Calculate the intensity level…

A: Write the expression for the intensity level and substitute the required values to determine the…

Q: Q:A- Calculate the sound level in dB of a sound intensity 10-8 Wm-2

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Q: A noisy factory machine produces a sound intensity of 1.00 x 10-5 W/m2 when measured 10 m from the…

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Q: what would its intensity level have to be to reduce the intensity by a factor of 2.40?

A: Explanation and final answer is in next step.