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Q: A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed…
A: Time (t) taken to hear the echo = 5 s Distance (d) of object from submarine = 3625 m Total distance…
Q: you stood at the same point on a cold day were T2 = -7.5 °C how long is have taken fou u to hear
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Q: 10 m long string of mass 20 g has a tension of 25.5 N. The wavelength of waves on it is 1.33 m. What…
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Q: An observer records a sound intensity of 18 W/m2 at 100 cm from a speaker. At what distance does he…
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Q: Wave travels along a guitar string at 12 m/s when the stretch is 31N. what is the wave speed if the…
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Q: first order amplitude determines loudness, does our ear hear all sounds with the same amplitude as…
A: The sounds having same amplitude but different frequencies will hear at different loudness. Loudness…
Q: Question When poked by a spear, an operatic soprano lets out a 1200-Hz shriek. What is Its…
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Q: Suppose that a sound source is emitting waves uniformly in all directions. If you move to a point…
A: Given A person move to a point which is four times as far away from the source. We have to choose…
Q: The intensity I of a sound is given. Find the loudness L of the sound (lo = 10-12 w/m2). |= 10-9…
A: In this question intensity of sound is given also they have given the threshold intensity we have to…
Q: You have been commissioned to design a pipe organ whose notes span the entire range of human…
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Q: A sound wave travelling in a dense medium has a frequency of 20 KHz and a wavelength of 40 cm. What…
A: Write the expression for the speed of the waveform. Here, n represents the frequency and λ…
Q: Crickets produce a musical chirping sound at a frequency around 10,000 Hz (very high pitched)! The…
A: Answer :- Given Frequency of sound (f) = 10000 Hz Wavelength (λ) = 0.03 m Speed of sound = V…
Q: The lowest frequency a certain sound receiver can detect is 760 Hz. If the receiver detects a…
A: The given data are: Δf=4 Hzf=762 Hz Here, Δf denotes the beats per second and f denotes the…
Q: Assume that a friend has a hole in his head extending and rising. from one ear out the other.…
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Q: What is the temporal frequency of input to a vehicle driving over a rumble strip at 45 MPH if there…
A: Given, Speed of the vehicle, v = 45 mph rumble strip recess in every 18 cm hence the wavelength of…
Q: What mass in grams is needed to vibrate the string (linear mass density is 0.015 glam) and produce a…
A: Linear mass density of string, μ = 0.015 g/cm Length of the string, L = 50 cm Frequency produced, f…
Q: a tissue has a wavelength of 0.50 mm. (a) What is the speed of sound, vs (in mm/µs) in this tissue?…
A: 1 M Hz = 106 Hz Wavelength = 0.5 mm = 0.5 × 10-3 m
Q: A sound wave has a frequency of 2500 Hz. What is the distancce between crests or compressions?…
A: As per guidelines firs question is answered, kindly post another question as a new question.
Q: Two identical traveling waves, moving in the same direction, are out of phase by π/2 rad. What is…
A: According to the principle of superposition of waves, the resultant amplitude of two waves is the…
Q: (I) (a) Calculate the wavelengths in air at 20°C for sounds inthe maximum range of human hearing, 20…
A: a) The relation between the wavelength, frequency and velocity is given by,
Q: The frequency is 1.5 Hz and the amplitude is o.75 cm. The wave speed of this wave is 6.10 cm/s. What…
A: Given:The frequency is, f=1.5 HzAmplitude is, A=0.75 cmWave speed, v=6.10 cm/s
Q: The speed of a 25-kHz sound wave in seawater is approximately 1650 m/s. What is its wavelength in…
A: Given, Frequency of the sound wave = 25 KHz Speed of sound wave in seawater = 1650 m/s. We know…
Q: A sound wave that has a higher frequency has a wavelength that is O the same as any other wave O…
A: Option 3 is the right answer Shorter
Q: A loudspeaker, mounted on a tall pole, is engineered to emit 75% of its sound energy into the…
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Q: In the upper atmosphere at altitudes where commercial airlines travelwe find extremely cold…
A: temperature at which speed of sound to be calculated T = 50 k
Q: The area were the molecules are least crowded in a sound wave is called the _
A: The area were the molecules are least crowded in a sound wave is called the _Rarefaction
Q: (a) What is the speed of sound in a medium where a 100-kHz frequency produces a 5.96-cm wavelength?…
A: To determine: (a) The speed of sound in a medium. (b) What is the name of the substance for this…
Q: At a rock concert, a 10 kW speaker is located on one side corner of the stage. If 2% of the speaker…
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Q: How far should you stand away from a sound source that generates and 85-W power to cause damage to…
A: Given Power of sound source is P=85 W Maximum hearing intensity of Ear is I= 1 W/m2
Q: A transverse wave of frequency 60 Hz prop- agates down a string. Two points 10 cm apart 7 T are out…
A: (a) What is the wavelength of the wave. (b) At a given point, what is the phase difference between…
Q: On a guitar. some strings are single wires, others are wrapped with another wire to increase the…
A: The strings that are wrapped with another wire, are always used to produce a low-frequency note.
Q: What is the wavelength in water of a compressional wave whose frequency is 400 per second if the…
A: Let the water wave’s speed is denoted by v and the frequency is denoted by f.
Q: Ten oboes produce a sound intensity level of 50 dB in a concert hall. The number of oboes needed to…
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Q: The sound of a weight dropping to the ground is 87 sec. What is the frequency of the sound wave for…
A: Frequency of the wave is the inverse of time, f = 1/ t = 1/87s = 1.149 *10-2 hertz
Q: The driver ofa car travelins 16.0 m/s sounds his horn as he approaches anintersechon, If the horn…
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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: A projectile is approaching you at 50 m/s and whistling with a frequency of 300 Hz if heard by an…
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When an object approaches you at Ma = 0.8, you can hear
it, according to Fig. But would there be a Doppler
shift? For example, would a musical tone seem to you to
have a higher or a lower pitch?
For , the displacement experienced by the sound waves is larger than the displacement experienced by the object transmitting the sound waves. The sound waves move quicker than the particle is all directions, and hence, a person would register the sound waves before the particle approaches him. So whether the object is approaching, passing or going away from a person, he hears the sounds waves with the same intensity. Hence, there would not be a Doppler shift.
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