A bat is using echolocation to find insects at night. If the bat emits a high frequency chirp and hears an echo 0.031 s later, how far away is the insect? The temperature of the air that night is 24°C.

Q: Two ultrasonic sound waves combine and form a beat frequency that is in the range of human hearing…

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Q: A man hears his echo from a nearby hill 2 seconds after he shouted. If the frequency of his voice is…

A:

Q: You are driving along a highway at 32 m/s when you hear the siren of an emergency vehicle traveling…

A: Speed of observer is When source and observer approaching each other then the frequency observed by…

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: Dolphins emit ultrasonic waves with a frequency as high as 2.50 × 105 Hz. What is the wavelength X…

A: Frequency of the ultrasonic waves is Speed of sound waves in seawater at  is Note:Find:Wavelength of…

Q: A piano string vibrates 4186 Hz. What is the wavelength of the vibration if the speed of the sound…

A:

Q: The ionosphere is the ionized part of the upper layer of the earth's atmosphere. The air molecules…

A: In the question, the following quantities are given: The resistance of the atmosphere (R) = 2.00 x…

Q: Dolphins emit ultrasonic waves with a frequency as high as 2.70 × 105 Hz. What is the wavelength of…

A: Given The frequency of the ultrasonic wave at 25.0°C is f=2.70×105 Hz. The velocity of sound at…

Q: This layer of the atmosphere is a fairly good conductor, and radio waves are often "bounced" off the…

A: Given: Resistance R = 200  ohms Capacitance C = 0.07 F Fundamental frequency of resonance f = 7.83…

Q: Jack and Jill go for a walk along an abandoned railroad track. Jack puts one ear next to a rail,…

A: Given,

Q: A train passes by a little boy at the depot. As it moves away from the boy at 65 m/s, the whistle…

A:

Q: Image the blood's speed? [No That i

A: The reflected wave dropper shift as,

Q: Solar cells convert the energy of incoming light to electric energy; a good quality cell operates at…

A: The efficiency of the good cell,   The average rate of power,   The average intensity of solar…

Q: A physics professor demonstrates the Doppler effect by tying a 580 HzHz sound generator to a…

A: The formula for Doppler Effect on the frequency, in case of stationary observer, can be written…

Q: A fire truck emits a sound with frequency of 775Hz a. What is the frequency detected by stationary…

A: Doppler effect is the change in frequency of a wave due to relative motion of the observer and the…

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 truck moving with a speed of 31.8 m/s sounds a 136 Hz horn. What frequency is heard by an observer…

A: The observer status near the tracks is the receiver of the sound wave, and because the truck is…

Q: The intensity of electromagnetic waves from the sun is 1.4 kW/m2 just above the earth’s atmosphere.…

A:

Q: A SONAR (sound navigation and ranging) uses ultrasonic waves to detect and locate objects under…

A: SONAR is a device used to detect and locate objects under water using ultrasonic waves. The speed of…

Q: as the Schumann resonances. New theoretical work suggests that primordial cells synchronized their…

A:

Q: A typical sound level for a buzzing mosquito is 39 dB, and that of a vacuum cleaner is approximately…

A:

Q: A baseball hits a car, breaking its window and triggering its alarm which sounds at a frequency of…

A:

Q: A loudspeaker on a tall pole broadcasts sound waves equally in all directions. What is the…

A: Recall β=loudness=10dBlogI/I0 I=P/A

Q: The intensity of a sound wave emitted by a radio is 5.00 µW/m2. What is the sound level (in dB)?

A:

Q: Suppose a bat emits ultrasound at frequency fbe = 81.28 kHz while flying with velocity vb = (12.16…

A: The given problem is based on doppler effect of sound General equation of doppler shift is given by…

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

A: We have to determine the highest and the lowest frequency heard by a student in the class.

Q: Dolphins rely on echolocation to be able to survive in the ocean. In a 20∘C20∘C ocean, a dolphin…

A:

Q: Bats emit ultrasonic waves with a frequency as high as 1.10 × 105 Hz. What is the wavelength of an…

A:

Q: A Girl Scout is taking a 10.00-km hike to earn a merit badge. While on the hike, she sees a cliff…

A: Given data The total distance of the hike is h=10.00 km The time of echo is t=2.00 s The initial…

Q: You are traveling at 19m/s while a vehicle with a siren approaches you from behind at 29m/s. You…

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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: The siren of a policy car at rest emits a frequency of 1600 Hz. What frequency do you detect if you…

A: The frequency of sound emitted by the source (policy car) is given as, f  = 1600 Hz The speed of…

Q: The crew of a ship going 35.4 m/s towards a distress beacon hears a frequency of 11khz. What is the…

A:

Q: Solar cells convert the energy of incoming light to electric energy; a good quality cell operates at…

A:

Q: A piano wire with a mass of 2.75 g and a length of 85 cm is stretched with a tension of 30 N. A wave…

A:

Q: A bat flying toward a wall emits a chirp at 40kHz. Is the frequency of the echo received by the bat…

A: Given : Let the velocity of the bat 'u'.Considering the two different parts of the problem .(1)…

Q: Dolphins rely on echolocation to be able to survive in the ocean. In a 20 °C ocean, a dolphin…

A:

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

A: The formula for Doppler Effect on the frequency, in case of stationary observer, can be written as,…

Q: Most bats use echolocation to navigate and hunt. They emit pulses of high frequency sound waves…

A: Object distance, d=12.5 mSpeed of sound, v=345 m/s

Q: You have a 91-W and a 73-W lightbulb that are identical in every other way. When you are at 10.3 m…

A:

Q: A person in a cave emits a sound and receives an echo 2.5 seconds later. How far is that person away…

A: Time of echo T = 2.5 sLet the distance of the wall from person S = ?Total distance travel by sound =…

Q: rou've entered the Great Space Race. Your engines are hearty enough to keep you in second place.…

A: Frequency of light is f = 5.640 x 1014 Hz Speed of the person is v = 2627 km/s = 2627000 m/s

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.