Which of the following are appropriate terms to use in describing the impact sound isolating properties of materials: a. LnT,w + Ctr and DnT,w + Ctr b. Ln,w + CI and LnT,w + CI c. DnT,w + CI and Rw + Ctr d. R, STC and L e. IIC, R and L f. TL, STC and NR

Q: If the length of the vibrating string is 8.1 m, then calculate the wavelength of the standing wave…

A: Given Data : The length of the vibrating string is L=8.1 m. Here we have to find out the wavelength…

Q: Which of the following statements are correct? Which one or more? a. The perceived…

A: The perceived loudness of a sound is a subjective measure of how loud a sound seems to a listener,…

Q: Phy.3

A: The problem is asking us to find the distance at which the sound intensity level of a cicada drops…

Q: Consider a pipe of length L that is open at both ends. What are the wavelengths of the three…

A: Given ,Length of the pipe = L Let , wavelength = λSo , Length of the pipe is given by , L = nλ / 2…

Q: MCQ 1. A piano string of density 0.005 0 kg/m is under a tension of I 350 N. Find the velocity with…

A:

Q: When a sound wave moves through a medium such as air, the motion of the molecules of the medium is…

A: A longitudinal wave is a wave, where all the particles of the medium vibrate in the same direction…

Q: A researcher immerses a sound detector in water to record the sounds emitted by the animals. The…

A:

Q: What is the time period of a sound wave with velocity 400 m/s in air and a wavelength of 0.50 m?…

A: We know that-Frequency, f=cλwhere, c is the velocity of sound in air= 400 ms-1Wavelength of sound…

Q: A teacher wants to demonstrate that the speed of sound is not a constant value. Considering her…

A: B.

Q: 14. Find the intensity of sound in W/m2 at a distance of 10 m away from a speaker whose power output…

A:

Q: 81. A physics professor demonstrates the Doppler effect by tying INT a 600 Hz sound generator to a…

A: In this question we have to find the highest and lowest frequencies heard by the student. Please…

Q: Assuming that you have normal hearing, why would your voice appear louder when your plug both ears?

A: The correct answer is option B i.e. The amplification of competing environmental sound by the middle…

Q: Give two real world examples of a. A longitudinal wave b. A transverse wave

A: Longitudinal waves When particles of a wave vibrate in the direction perpendicular to the direction…

Q: 5. What is the intensity level in decibels for a sound that has an intensity of 5×105 W/m²? A. 79 dB…

A: Sound intensity level (I0 in dB) is reference intensity corresponding at 0 dB: I0 = 1 × 10-12 W/m2…

Q: What is the velocity of a sound wave with time period of 2 x 10-3s in air and a wavelength of 0.50…

A: Given Time period is T=2×10-3 s Wavelength is λ=0.50  m

Q: What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 68 m?

A:

Q: 10. Determine the speed of sound in concrete material with Young's modulus of 3 x 10^10 N/m2 and a…

A:

Q: An 180 dB sound can cause permanent hearing damage. By what factor is this larger than the quietest…

A: The quietest audible sound for human is 0 dB.

Q: The distance between consecutive peaks of a transverse wave is 1.45m. Eight peaks pass by you in…

A: f=nT=813.7 s=0.58 Hz   Speed of wave v=0.58 Hz1.45 m=0.84 m/s

Q: What is the time period of a sound wave with velocity 400 m/s in air and a wavelength of 0.50 m?…

A: We know that-Frequency, f=cλwhere, c is the velocity of sound in air= 400 ms-1Wavelength of sound…

Q: A string on a guitar produces 431 Hz sound. How to increase the pitch of the sound produced by the…

A: Remember that frequency/pitch of sound produced by the string is given by: f = V/λ = Tμ Option A:…

Q: A guitar has 4 strings. The mass per unit length of the G string is 4 times the mass per unit length…

A:

Q: Which of the following are appropriate terms to use in describing the impact sound isolating…

A: The sound isolating properties of materials refer to their ability to prevent the transmission of…

Q: A sound source that has a frequency of 500 Hz moves at a speed of 15 m/s approached a silent…

A:

Q: A string on a guitar has a fundamental frequency of 110 Hz. Find the frequency of its 4th overtone.

A: We have the fundamental frequency of the string fo. It is the frequency of the first harmonic.…

Q: Doppler effect is not observed in sound wave . Choose one correct example from the given examples.…

A: Required : Doppler's effect is not observed in which case.

Q: 1. Which of the following statement  is the least accurate? a. Ultrasonic scalers convert sound…

A: 1. B. Rotary scalers convert air pressure into mechanical vibration is the least accurate statement.…

Q: Doppler effect is not observed in  the sound wave. Choose one correct example from the given…

A: The correct answer is option (c).

Q: John ties a 15-m-long, 4 kg rope to a wall and stretches it out horizontally, placing it under a…

A: The string's tension is, T=4000 N The linear mass density of the rope is, μ=mL=4 kg15 m=0.267 kg/m

Q: What happens to the frequency of the sound that you hear if the source is moving towards you? a.…

A: Doppler effect is defined as the variation of the observed frequency of a sound when there is the…

Q: The frequency of an ambulance siren is 1000 Hz at rest. Ahmad, which is in his car, hears the…

A: frequency of ambulance siren at rest = 1000 Hz Frequency heard by Ahmad in his car = 1010 Hz

Q: Sound produced at a point is heard by a person after 5 second, while the same sound is heard by…

A: Distance is defined as x=vt Here x is the distance, v is speed and t is time.

Q: 1. assume the speed of sound is 343m/s. calculate the lenght of the air columb for first harmonic,…

A: Given: The speed of sound in air is v=343 m/s. The frequency of tuning fork is f=1450 Hz. The…

Q: Q26. A sound of 40 dB is, A. twice as intense as a sound of 20 dB B. 4 times as intense as a sound…

A: A sound of 40dB is twice the intensity of sound of 20dB. (40dB= 2x 20dB).Hence, the appropriate…

Q: You are on an island where a huge explosion at a distance of 500 miles away can be heard. How long…

A: Convert miles to meter. 500 miles=500 miles×1609.34 m1 miles              =804670 m

Q: If a 70 cm long guitar string produces a fundamental frequency of 250 Hz. What is the frequency of…

A: Given Fundamental frequency is f1= 250 Hz

Q: a. In your own words, define what a longitudinal wave is.b. Give an example of a wave that, from…

A: A.  Longitudinal waves: The waves in which the particles of medium vibrates in the same direction of…

Q: you are playing a non-harmonic or percussion instrument and you change the number of overtones of a…

A: Option (B) is correct.It is hard to say because most percussion instruments don’t have a strong…

Q: At a distance of 59 m from an airplane engaged in take-off the intensity of sound is 1.33 Wim What…

A: