find the plane’s altitude.
Q: The speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius. Suppose you put a…
A: we know that
Q: The speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius. Suppose you put a…
A:
Q: A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies…
A: Increase in dB level, B2 - B1 = 30.0 dB The intensity picked up by the hearing aid, I1 = 3.9×10-10…
Q: The power output of a trombone is 0.30 W. At what distance is the sound intensity of the trombone…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: A person is standing 20 meters away from a wall. They clap their hands, creating a sound that…
A: The distance between the person and the wall is 20 meters.The speed of sound in air is 343 meters…
Q: As you learned in class, a sound wave is a pressure wave that propagates through the air (or other…
A:
Q: You are listening to the radio when one of your favorite songs comes on, so you turn up the volume.…
A: Given Data The sound intensity is increased by 21.0 dB. We have to find the by what factor did the…
Q: A sound wave from a siren has an intensity of 118.7 W/m2 at a certain point, and a second sound wave…
A:
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: A bat emits ultrasonic pulses and uses them to navigate and to locate flying insects. If these…
A: Rate of pulse emission: p=2 pulses per second Speed of sound in air: v=344 m/s
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: 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: Nuclear explosions cause a blast wave, a high-pressure shock wave generated by the heat from the…
A:
Q: The speed of sound in sea water is 1540 m/s. Dolphins use sonar in the form of high frequency pulses…
A: The speed of sound in sea water v =1540 m/s Length L = 8.91 cm So, the wavelength required is λ…
Q: Bats use sound waves to catch insects. Bats can detect frequencies up to 116 kHz. If the sound waves…
A: a. Given data The frequency detected by the bats is given as f = 116 kHz. The speed of the sound…
Q: A bat is flitting about in a cave, navigating via ultrasonic bleeps. Assume that the sound emission…
A: Given that The original frequency of the bat, fs=37.1kHzfs=37100Hz The velocity of the bat…
Q: Move away from a sound source, from distance r, to r₂ = 2₁. (A) By what factor does the intensity…
A:
Q: If you install special sound-reflecting windows that reduce the sound intensity level by 35.0 dB, by…
A:
Q: A supersonic jet is flying overhead at a constant altitude of 4.97 km and a speed of 1.32 times the…
A: Solution: Given Values, Altitude(h)=4.97 Km =4970 m Jet speed(v)=1.32×340 m/s (since the speed…
Q: Two pianos each sound the same note simultaneously, but they are both out of tune. On a day when the…
A: Given value--- speed of sound = 340 m/s. wavelength of piano A = 0.762 m. wavelength of piano B =…
Q: Describe ONE evolutionary consequence of using insecticides to kill pests rather than ultrasonic…
A: Insects spread disease and destroy millions of tons of crops each year. With global climate change…
Q: The following sound waves have what velocity? (a)f-314 Hz, 2= 168 m m/s (b)f-314.0 Hz, 2 = 7.70 m…
A: We know, Velocity is the product of frequency and wavelength
Q: 9. The sound intensity from a jack hammer breaking concrete is 2.50 W/m² at a distance of 2.00 m…
A: Sound intensity I=2.50 W/m2 Distance r=2.00 m from the point of impact. Sound intensity formula is…
Q: You are in Switzerland and decide to try yodeling. You are facing a cliff some distance away. If the…
A:
Q: A low C (f = 65Hz) is sounded on a piano. If the length of the piano wire is 2.0 m and its mass…
A:
Q: When you "crack" a knuckle, you suddenly widen the knuckle cavity, allowing more volume for the…
A: Given data: distance from kunckle to ear r = 0.26 m sound level β=65dB
Q: Your friend is firing a gun, and you want to be a safe distance away, so you walk away until there…
A:
Q: The speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius. Suppose you put a…
A: Given Speed of sound in air (V0) = 331 m/s at 0° C We know speed…
Q: Diagnostic ultrasound of frequency 4.50 MHz is used to examine tumors in soft tissue. If the speed…
A: The relation between speed, wavelength and frequency is given as:v=λfλ=vf......(1)where,λ is the…
You’re a marine biologist concerned with the effect of sonic booms on plankton, and you need to estimate the altitude of a supersonic aircraft flying directly over you at 2.2 times the speed of sound. You hear its sonic boom 19 s later. Assuming a constant 340 m/s sound speed, find the plane’s altitude.
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- A sound wave having a frequency of 345 Hz travels through air at 20 °C. The decibel level at a distance of 16.3 m from the source is measured to be 86.5 dB. What is the maximum displacement of air molecules at that location? Assume the density of air is 1.20 kg/m³ and that the source produces spherical wave fronts. Express the displacement as a number having the units of mirco meters. 1 micro meter = 1 x 10-6 m. For example, If your calculated answer were 1.873 x 107 m, your entry would be the number 0.187102 kg/m3? What is the speed of sound in benzene, which has a bulk modulus of 1.05 x 109 Pa and a density of 8.76 x 1094.82 km/sBats of the Vespertilionidae family detect the distance to an object by timing how long it takes for an emitted signal to reflect off the object and return. Typically they emit sound pulses 3.00 ms long and 70.0 ms apart while cruising. If an echo is heard 32.8 ms later (vsound = 331 m/s), how far away is the object? When an object is only 39.2 cm away, how long will it be before the echo is heard? When an object is only 39.2 cm away, the bat __________ able to detect the echo.
- While sitting next to a road on a calm, warm 27.9ºC evening, you see an ambulance's lights flashing in the distance coming towards you. You hear a frequency of 150 Hz (you have a very keen ear!). However, you know that ambulances have sirens that emit sound at 140 Hz. How fast is the ambulance approaching you, in m/sIf the wind were blowing at 25.0m/s in the same direction you are driving, what frequency would you hear?A sound wave represented by A = 0.0613 sin (2.81x - 978t). The density of air is 1.20 kg/m3. What is the maximum displacement of the air molecules? (b) What is the temperature of the air?
- dolphins make sounds in air and water. What is the ratio of the wavelength λa of a sound in air at sea level to its wavelength λs in seawater if the speed of sound in water at that specific location is 1530 m/s and the air temperature is 10.00 ∘C? λa/λs=The speed of sound in air is 340 m/s, and the density of air is 1.2 kg/m³. If the displacement amplitude of a 440-Hz sound wave is 10 μm, what is the intensity of the wave? O 0.16 W/m² O 0.32 W/m² O 12 W/m² O 16 W/m² O 32 W/m²A rod has length 20 cm has its ends A and B kept at 30°C and 90°C respectively, until steadystate conditions prevail. If the temperature at each end is then suddenly reduced to 0°C and maintained so. The temperature u(x, 0) at a distance x from A at time t = 0 is given by Nnx u(x,0) = > bn sin = 3x + 30, 0Two pianos each sound the same note simultaneously, but they are both out of tune. On a day when the speed of sound is 341 m/s, piano A produces a wavelength of 0.763 m, while piano B produces a wavelength of 0.780 m. How much time separates successive beats?A sound wave in an unknown fluid medium takes 580 μs to travel 3.00 m. What is the bulk modulus of the fluid, if the density is 4.30 x 103 kg/m3? A 1μs is 1 x 10-6s.A sound wave having a frequency of 266 Hz travels through air at 20 °C. The decibel level at a distance of 21.3 m from the source is measured to be 77.4 dB. What is the maximum displacement of air molecules at that location? Assume the density of air is 1.20 kg/m³ and that the source produces spherical wave fronts. Express the displacement as a number having the units of mirco meters. 1 micro meter = 1 x 10-6 m. For example, If your calculated answer were 1.873 x 10-7 m, your entry would be the number 0.187 7.13SEE MORE QUESTIONS