A dolphin uses echolocation underwater to "see" its surroundings. If the speed of sound in the ocean is 1530m/s, how long would it take for the dolphin to hear an echo if the ocean floor is 2.57km below it?

Q: A sound wave with intensity 2 x 10 -3 W/m2 is perceived to be modestly loud. Your eardrum is 6 mm in…

A: Intensity of sound (I) = 0.002 Wm2Diameter of eardrum (d) = 6 mm

Q: A bat at rest sends out ultrasonic sound waves at 60.0 kHz and receives them returned from an object…

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Q: A noise level meter reads the sound level at the emergency ward to be 85 dB. What is  sound…

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Q: A sound wave has a frequency of 4200 Hz. The speed of sound for this problem is 344 m/s. (a) What is…

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Q: A typical sound level for a buzzing mosquito is 35 dB, and that of a vacuum cleaner is approximately…

A: Given, sound level for a buzzing mosquito=35dB sound level for vacuum cleaner=65dB

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

A: Given data The frequency is given as f = 9.01 x 104 Hz. The speed of the sound in the air is given…

Q: A train whistle emits a sound at a frequency of 300 Hz when it is stationary. If you are at the…

A: The frequency of the sound heard by the observer when the source is moving to a stationary observer…

Q: If the velocity of the sound on air is v=343 m/s and the wavelength A=0.67 meters, what is the…

A: Given that:Velocity, v=343 m/sWavelength, λ=0.67 m

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

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Q: The bulk modulus and the density of a liquid is B = 584 MPa and ρ = 1,027 kg/m3, respectively. What…

A: Given data: bulk modulus B = 584 MPa.   Density of liquid (ρ0) =1027 kg/m3.

Q: Move away from a sound source, from distance r, to r₂ = 2₁. (A) By what factor does the intensity…

A: Intensity  is inversely proportional to the square of the distance from the source. β = 10 logI/I0 β…

Q: the human ear tends to be most sensitive to sound frequencies of 3 khz. the sound intensity at this…

A: Given:-           Sound frequencies =3 kHz.          Intensity of sound  = 3 x 10-13 w/m2.…

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: During a thunderstorm, 4.1 s elapses between observing a lightning flash and hearing the resulting…

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Q: Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of…

A: We know that   v = 331m/s + 0.6m/s/C * T     here T is in celcius

Q: A sound wave has a frequency of 632 Hz in air and a wavelength of 0.51 m. What is the temperature of…

A: Given, frequency = 632 Hz wavelength = 0.51 m We know, c is the speed of sound

Q: An explosion occurs in Baguio city during a cold day at 8 °C. How long after the explosion does a…

A: The velocity of sound wave is given by, v = d/t  Where, v = velocity of sound d = distance travelled…

Q: A bat can detect small objects that are roughly the same size as the wavelength of the sound they…

A: Given data: Frequency (f) = 60 kHz Speed (v) = 330 m/s Required: Wavelength (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: A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1390 Hz. The…

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Q: The driver of a car traveling 27.0 m/s sounds his horn as he approaches an intersection. If the horn…

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

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Q: A group of hikers hears an echo 4.00 s after shouting. How far away is the mountain that reflected…

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Q: he amplitude of a sound wave is measured in terms of its maximum gauge pressure. By what factor does…

A: Given: The sound level is ∆β=36 dB. The expression for sound level is: ∆β=10 dBlog10A2A12 Here, A1…

Q: Picnickers see a lightning flash and hear the resulting thunder 9.50 s later. If the storm is…

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Q: The driver of a car traveling 24.0 m/s sounds his horn as he approaches an intersection. If the horn…

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Q: Two students hear the same sound and their eardrums receive the same power from the sound wave. The…

A: Given; Let there be two students A and B.  Both receives the same power from sound wave i.e. PA =…

Q: On a hot summer day, the temperature in Anchorage reaches 75 degrees Fahrenheit. What is the speed…

A: Assume that the temperature of the Anchorage reaches a temperature, TF = 75 ̊ F.

Q: A bat is using echolocation to find insects at night. If the bat emits a high frequency chirp and…

A: Given, The bat emits a high frequency chirp and hears an echo 0.031 s later. Temperature of air is…

Q: A grunting porpoise emits sound at 57 Hz. What is the wavelength of this sound in water, where the…

A: Given:  frequency, f = 57 Hz  wave velocity, v = 1500 m/s

Q: blood-flow meter emits a 1.9-MHz ultrasound pulse to measure the speed of blood moving directly away…

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Q: A 2nd harmonic sound wave fills an empty glass jug 60 cm long. If it moves at 340 m/s, what is the…

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Q: A source of sound is moving at 10 m/s towards a stationary listener while producing a 1000 Hz pure…

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Q: A bat emits squeaks that have a frequency of 1.25 x 105 Hz. If the speed of sound in air is 325 m/s,…

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Q: how much time does it take for you to complete 12 dribbles?

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Q: An earthquake wave travelling with a speed of 5.00 x 103 m/s has a frequency of 8.00 Hz. What is its…

A: The speed of the wave is 5.00×103 m/s. The frequency of the wave is 8.00 Hz.

Q: A creature can detect very small objects, such as an insect whose length is approximately equal to…

A: frequency f = 65 KHz  = 65*103 Hzspeed v = 340 m/s

Q: omeone hits a cold metal pipe with a hammer, and it produces a sound with a frequency of 360.0 Hz.…

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Q: An ultrasound unit is being used to measure a patient’s heartbeat by combining the emitted 2.0 MHz…

A: The frequency shift of waves reflected from a moving object is, ∆f=±2fsvov ∆f: Shift in frequency on…