1. Two tuning forks are sounded simultaneously, and you can hear a tone that rises and falls in intensity six times per second. One tuning fork vibrates at 420 Hz while the other vibrates at unknown frequency. Determine the frequency of the unknown tuning fork.

Q: Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the…

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Q: 2. The figure shows a loudspeaker A and point C, where a listener is positioned. JAC| = 5.00 m and…

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Q: Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the…

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Q: Two out of phase loudspeakers are some distance apart. A person stands 5.40 m from one speaker and…

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Q: 1- Is Intensity an acoustic variable? A. True B. False

A: 1. yes ,intensity is acoustic variable.   ANS:True

Q: Cracking Your Knuckles When you "crack" a knuckle, you cause the knuckle cavity to widen rapidly. If…

A: 0dB is the threshold limit of the audible sound.

Q: Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the…

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Q: Problem 3: Ten cars in a circle at a boom box competition produce a 135-dB sound intensity level at…

A: Given data The sound intensity produced by ten cars is given as β=135 dB. The expression for the…

Q: The loudest sound produced by a living organism on Earth is made by the bowhead whale (Balaena…

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Q: 4. If one sound is 30 dB greater than another sound, what is the ratio of the larger intensity over…

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Q: Speakers A and B are emitting sound wave in phase with the same wavelength 175 Hz. Speaker A is a…

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Q: Given: The intensity level of a sound wave is 75 dB relative to 1µPa. Required: Determine the…

A: Intensity level of sound relative to 1 μPa (I1)=75 dB We need to find the intensity level relative…

Q: 3. When a 400HZ tuning fork is played with a mystery frequency, 7 beats per second are heard. When a…

A: frequency of tuning fork (f) = 400 Hz Let the mystery frequency = F Beat frequency (b) = 7 beats per…

Q: *9. mmh Two loudspeakers on a concert stage are vibrating in phase. A listener is 50.5 m from the…

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Q: In her physics lab Maria finds that she can take a long glass tube and fill it with water using the…

A: Waves behave like a wave inside a tube. They are known as standing waves. In case of a pipe closed…

Q: 1. Using the speed of sound corrected for room temperature as the accepted value for the speed of…

A: Given that:

Q: 4. A string on a cello is plucked. Consider the following properties in the wave on the string and…

A: (i) Frequency remains same. (ii) Wavelength are different in two media. (iii) Speed of waves changes…

Q: Two loudspeakers are separated by 2.00 m. The speakers are identical, meaning that they emit sound…

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Q: 4. Two identical loudspeakers are fed the same signal which generates sound of wavelength 2 The…

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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: 9. Two out of phase loudspeakers are some distance apart. A person stands 5.50 m from one speaker…

A: Given data: Distance of person from the one speaker is, d1=5.50 m. Distance of person from another…

Q: 3. A source of spherical sound waves generates a constant tone with a frequency of 440 Hz. At a…

A: At distance R = 5.00 m , Intensity of sound I = 1.25 * 10-4 W/m2  We need to find the distance X…

Q: ** 17. The lowest 4 frequencies at which the air column contained inside a tube will support…

A: Given data : The four lowest frequencies are, f=75, 225 , 375 and 525 Hz.

Q: In a certain home sound system, two small speakers are located so that one is 70.0 cm closer to the…

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Q: Problem 6: A bat, flying at 4.9 m/s, pursues an insect that is flying at 1.4 m/s in the same…

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Q: (3)We find the detected signal is a standing wave, 1.We use sonar to detect a block underwater.…

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Q: 5. An aluminum rod 1.60 m long is held at its center. It is stroked with a rosin-coated cloth to set…

A: Length of aluminum rod = 1.60 m  Speed of sound in aluminum = 5100 m/ s

Q: 27) Which of the objects described below is in dynamic equilibrium?: * A) A 100 kg barbell is held…

A: 27)Dynamic equilibrium means that object should be in motion and net force on the object should be…

Q: You are in a room with two speakers that emit sound in phase. You are 12.0 m from the first speaker…

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Q: Susan stands directly in front of two speakers that are in line with each other. The farther speaker…

A: Formula of destructive interference is given as follows; △d=(m+12)λfinal…

Q: Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the…

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Q: GOAL Use the concept of interference to compute a frequency. 0.350 m 1.15 m PROBLEM Two speakers…

A: distance between two speakers (D) = 3 m horizontal distance of listner from the midpoint of the two…

Q: A guitarist compares the sound of her A-string with that of a properly tuned guitar with A = 110 Hz…

A: Let the frequency of guitarist is F1  Frequency of A-string is FA FA=110hz

Q: Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase. The…

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Q: Two speakers are 3.0 m apart and play identical tones of frequency 170 Hz. Sam stands directly in…

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Q: 1.noise canceling earphones are an example of A. Constructive interference B. Destructive…

A: 1.noise canceling earphones are an example of Answer:-  B. Destructive enterference  Explanation- A…

Q: 41. Two identical point sources are 4.5 cm apart, in phase and vibrating at a frequency of 10 Hz.…

A: The distance between two identical point sources is d=4.5 cm=0.045 m The frequency of vibration is…

Q: An intensity detector can be moved along a straight track. a source of spherical waves is placed at…

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Q: Quiet. You (point A) and your friend (point B) are holding in-phase speakers which emit sound with…

A: For destructive interference  Path difference =nλ2∆x =nλ2, where n =1,3,5......

Q: A road side building has two doors on the same wall which is made up of sound proof material. Two…

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Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.