57. ssm A loudspeaker has a circular opening with a radius of 0.0950 m. The electrical power needed to operate the speaker is 25.0 W. The aver- age sound intensity at the opening is 17.5 W/m². What percentage of the electrical power is converted by the speaker into sound power?

Q: A bat emits a sound with a frequency of 153 kHz in a cave where the temperature is 28°C. Assume that…

A:

Q: A loudspeaker has a circular opening with a radius of 0.1308 m. The electrical power needed to…

A: radius of circular opening = 0.1308 m Electrical power needed to operate the speaker = 37.4 W Sound…

Q: A sound wave arriving at your ear is transferred to the fluid in the cochlea. If the intensity in…

A:

Q: A sound wave has intensity I, measured in units W/m^2. Show how to convert this intensity, I, to dB.

A: Given:-  A sound wave has an intensity I. The unit of intensity is W/m2. Find:-  Show how to convert…

Q: Deep ultrasonic heating is used to promote healing of torn tendons. It is produced by applying…

A: Given data: The radius of the transducer, r=1.20 cm=0.012 m The intensity of sound produced,…

Q: The fundamental frequency of an organ pipe, open at both ends, is 260.7 Hz. What should the length…

A: f0=v2LL=v2f0=343 m/s2260.7 Hz=0.658 m

Q: 1. Air temperature in the Sahara Desert has been known to reach 56.0 °C (about 134 °F). You are…

A:

Q: Problem 3: A sound wave of frequency 300 Hz has an intensity of 1.00 μW/m². What is the amplitude of…

A:

Q: 33. mmh At what temperature is the speed of sound in helium (ideal gas, y = 1.67, atomic mass =…

A: Given: The adiabatic index is 1.67. The atomic mass of the helium is 4.003 u. The temperature of…

Q: Solar cells convert the energy of incoming light to electric energy; a good quality cell operates at…

A: The efficiency of the good cell,   The average rate of power,   The average intensity of solar…

Q: Problem 4: An audio engineer takes decibel readings at distances of rl m and r 21 m from a concert…

A: Given: Distances, r1=11 mr2=21 m And,  β=101 dB To find: a) Intensity of sound b) Power, c)…

Q: A bat emits a chirping sound of frequency 67.0 Hz while moth hunting. The chirp lasts for 1.0 ms and…

A: Velocity of sound

Q: A typical adult ear has a surface area of 2.61 x 10-3 m². The sound intensity during a normal…

A:

Q: A sound with a frequency of 3258Hz is perceived to be as -8.2dB. What is the intensity of the sound…

A:

Q: You are in an auto traveling at 62 m/s toward a pole-mounted warning siren. If the siren’s frequency…

A:

Q: You work at a building site and the noise level has been measured at 95 dB. You need to wear…

A:

Q: A sound wave arriving at your ear is transferred to the fluid in the cochlea. If the intensity in…

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: Sound travels at a speed of v = 1570 m/s in water. While underwater a student hears a f = 1.5 kHz…

A:

Q: ting door reduces the sound level by 33 dBdB . What fraction of the

A: GivenSound level, S=33 dB

Q: The intensity of a sound wave emitted by a radio is 5.00 µW/m2. What is the sound level (in dB)?

A:

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

A: We have to use some basic formula.

Q: The intensity of a sound wave emitted by a radio is 5.00 µW/m2. What is the sound level (in dB)?

A:

Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: As we know that the wavelength is called to be the ratio of the speed of the wave to its frequency.…

Q: A typical adult ear has a surface area of 1.90 × 10³ m². The sound intensity during a normal…

A: The ear surface area A = 1.90 × 10- 3 m2 Sound intensity I = 2.04 × 10- 6 W/m2

Q: Bats emit ultrasonic waves with a frequency as high as 1.10 × 105 Hz. What is the wavelength of an…

A:

Q: Dolphins make sounds in air and water. What is the ratio of the wavelength of a sound in air to its…

A: Given data Tc=20°c=293 K

Q: 7. The sound intensity 3 mi from the takeoff point of a Concord supersonic jet is 0.60 W/m². What…

A: Given that:Intensity, I=0.60 W/m2P=40 W

Q: Solar cells convert the energy of incoming light to electric energy; a good quality cell operates at…

A:

Q: bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength…

A:

Q: A source emits sound waves isotropically.  The intensity of the waves 2.50 m from the source is 1.91…

A: Given, Intensity,I=1.91×10-4W/m2Radius,R=2.50m We have to calculate the power of the source, We know…

Q: A piano wire with a mass of 2.75 g and a length of 85 cm is stretched with a tension of 30 N. A wave…

A:

Q: A typical adult ear has a surface area of 2.05 x 10-3 m². The sound intensity during a normal…

A: The given data we have: Surface area of ear: 2.05×10-3m2 Sound intensity: 3.59×10-6Wm2   The…

Q: A typical adult ear has a surface area of 1.36 × 10-3 m2. The sound intensity during a normal…

A: It is given that,

Q: What frequency of sound traveling in air at 40 °C has a wavelength of 0.50 m?

A: We have given  Wavelength λ= 0.50 m Temperature T = 40°c We know that Speedof sound in air at 40°c…

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: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: Given,        frequency (f) = 51.0 kHz                            =  5.1 * 104 Hz   speed of sound…

Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: Given data:  Frequency (f) = 5.89×104 Hz Speed of sound (v) = 343 m/s

Q: *61. Deep ultrasonic heating is used to promote healing of torn tendons. It is produced by applying…

A: Given data: The radius of the circular sound transducer is R=1.8 cm. The sound intensity produces…

Q: 7. On a given day, the speed of sound in air is 3434m/s. As an emergency vehicle approaches you, you…

A: Write the expression for observed frequency f' in terms of the sound frequency. the speed of the…