The toadfish makes use of resonance in a closed tube to produce very loud sounds. The tube is its swim bladder, used as an amplifier. The sound level of this creature has been measured as high as 76 dB. (a) Calculate the intensity of the sound wave emitted. W/m2 (b) What is the intensity level if four of these fish try to imitate four frogs by saying "Budweiser" at the same time? dB
Q: An isotropically radiating point source of sound has a power output of 903 W. What is the sound…
A:
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: Bats rely on sound localization to be able to fly during the night. On a cool 20∘C20∘C summer night,…
A: frequency (f) = 39 kHz speed of sound (v) = 340 m/s
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 person wears a hearing aid that uniformly increases the intensity level of all audible frequencies…
A: Increase in dB level, B2 - B1 = 30.0 dB The intensity picked up by the hearing aid, I1 = 3.9×10-10…
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: In this problem take the speed of sound to be 348 m/s. A. How fast, in meters per second, does an…
A: Given: speed of sound, v = 348 m/s
Q: Calculate the minimum frequency fmin of ultrasound that will allow a technician to see details as…
A: Given Data: The wavelength of sound is, λ=0.350 mm The velocity of sound in tissue is, v=1540 m/s…
Q: The mating call of a male cicada is among the loudest noises in the insect world, reaching decibel…
A:
Q: A brand of earplugs reduces the sound intensity level by 27 dB. By what factor do these earplugs…
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: A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity…
A: The sound intensity level experienced by the crew member,
Q: The African cicada is the world’s loudest insect, producing a sound intensity level of 107 dB at a…
A:
Q: You are listening to the radio when one of your favorite songs comes on, so you turn up the volume.…
A: Given Data The sound intensity is increased by 21.0 dB. We have to find the by what factor did the…
Q: The decibel level of a sound is defined to be $100 (7) B= 10 log where I is the intensity of the…
A: A train horn with a decibel rating ofwith a radius of.We need to find the intensity of the train…
Q: A sound wave from a siren has an intensity of 118.7 W/m2 at a certain point, and a second sound wave…
A:
Q: According to the Guinness Book of Records, the anechoic chamber at Orfield Laboratories in…
A: Write the expression for the noise reading. Here, I represents the intensity of noise and I0…
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: 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 point source emits sound isotropically. The sound intensity is 0.02 W/m² at a distance of 7 m from…
A:
Q: The sound intensity near a jet engine is 120 dB. Assuming an attenuation coefficient in air of x =…
A: There are two types of waves, namely longitudinal and transverse. Transverse waves are those which…
Q: The table gives an estimate for the sound intensity of a whisper at 1.0 m. What is the sound…
A:
Q: at what distance from the factory (in km) is the intensity level of the whistle sound equal to 12…
A: Given, Factory whistle can be heard up to a distance, D=1.1Km=1100m Threshold of human hearing,…
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: Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the…
A: Given:The diameter of the ear is .The intensity of the sound is .
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: Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to…
A:
Q: 9. The sound intensity from a jack hammer breaking concrete is 2.50 W/m² at a distance of 2.00 m…
A: Sound intensity I=2.50 W/m2 Distance r=2.00 m from the point of impact. Sound intensity formula is…
Q: Two students hear the same sound and their eardrums receive the same power from the sound wave. The…
A: Given that First Intensity I1 = 0.79 W/m2 Second intensity I2 = (1.18)(0.79) W/m2 = 1.18I1 Diameter…
Q: The relationship between the number of decibles B and the intensity I in watts per square meteris…
A: Let original intensity = I new intensity = 100 I B = 10 log ( I * 1012)B1 = 10 log ( I * 1012)B2 =…
Q: If 10 W/m² corresponds to 160 dB, what is the sound intensity level, in decibels, of ultrasound with…
A:
Q: The sound intensity a distance d1 = 17.0 m from a lawn mower is 0.200 W/m2. What is the sound…
A: The sound intensity at a distance from the lawn mower is The sound intensity is defined as the…
Q: A family ice show is held at an enclosed arena. The skaters perform to music with level 81.0 dB.…
A:
The toadfish makes use of resonance in a closed tube to produce very loud sounds. The tube is its swim bladder, used as an amplifier. The sound level of this creature has been measured as high as 76 dB.
W/m2
(b) What is the intensity level if four of these fish try to imitate four frogs by saying "Budweiser" at the same time?
dB
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A sound wave having a frequency of 345 Hz travels through air at 20 °C. The decibel level at a distance of 16.3 m from the source is measured to be 86.5 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 107 m, your entry would be the number 0.187KajalbenSound intensity D (decibels) is measured relative to the lowest human–detectable sound I0 = 10–12 W m–2. D = 10 log (I/I0) What is the relative intensity from a jet with I = 9.5 × 102 W m–2 ? D = 95 D = 150 D = 15
- 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.12 gives the loudness of sound L (in dB) based on the intensity of sound I (in W/m²). The value I = 10 The formula L=10 log threshold for hearing for midfrequency sounds. Hearing impairment is often measured according to the minimal sound level (in dB) detected by an individual for sounds at various frequencies. For one frequency, the table depicts the level of hearing impairment. Category Mild Moderate Moderately severe Severe Profound Loudness (dB) 26≤L≤40 41≤L≤55 56≤L≤70 71 ≤L≤90 L>90 W/m is the minimal (a) If the minimum intensity heard by an individual is 9421.4 x 108 W/m², determine if the individual has a hearing impairment. Round to the nearest tenth. (b) If the minimum loudness of sound detected by an individual is 40 dB, determine the corresponding intensity of sound.A noisy factory machine produces a sound intensity of 1.00 x 10-5 W/m2 when measured 10 m from the machine. Assume that the sound spreads out uniformly into 3 dimensions for this set of questions. What is the sound power output of the machine? (Give your answer in mW.) What is the decibel level of the machine at 10 m? At what distance is the decibel level equal to 55 dB? (Give your answer in m.)
- 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)?The intensity level in decibels is defined as 10 log10(I/I0), where I0 is a reference intensity equal to the human threshold of hearing, 10–12 W/m2. What is the intensity of the threshold of pain, 120 decibels? answer is : 10° W/m2 I'm not sure how they got this answerAn ultrasound unit is being used to measure a patient’s heartbeat by combining the emitted 2.0 MHz signal with the sound waves reflected from the moving tissue of one point on the heart. The beat frequency between the two signals has a maximum value of 520 Hz. What is the maximum speed of the heart tissue?
- 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.Chapter 16, Problem 069 Your answer is partially correct. Try again. ES. lem The bellow of a territorial bull hippopotamus is measured at 116 dB above the threshold of hearing. What is the sound intensity? Hint: The threshold of human hearing is Io = 1.00 x 10-12 W/m2. plem %3D blem Number Units W/m^2 ▼ oblem the tolerance is +/-5% oblem roblem SHOW HINT Problem LINK TO TEXT Problem Problem By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Problem Question Attempts: 1 of 6 used SUBMIT ANSWER SAVE FOR LATER Problem Earn Maximum Points available only if you 8:02 PM 4/29/2020 19 e here to search 21 ASL pause break prt sc sysrq f11 f12 insert f8 f9 f10 f4 f5 f6 f7 f2 f3 backspace & %24 80 4 96The sound intensity of a conversation at a distance of 5.0 m is 1.7 x 10-7 W / m^2 . Determine the intensity at a distance of 7.0 m. Presume the sound spreads evenly in all directions.