You are driving toward the base of a cliffand you honk your horn. (a) Is there a Doppler shift of the sound when you hear the echo? If so, is it like a moving source or moving observer? (b) What if the reflection occurs not from a cliff, but from the forward edge of a huge alien spacecraft moving toward you as you drive?

Q: When you slosh the water back and forth in a tub at just the right frequency, the water alternately…

A: The expression for find wavelength is λ=2L Substitute values in the above equation…

Q: A source of sound has a total emitted power of 300 W. Determine the intensity a distance of 10 m…

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Q: ou see lightning strike a mountaintop, and 3.29 s later you hear the accompanying thunder. How far…

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Q: A boat is floating at rest in dense fog near a large cliff. The captain sounds a horn at water level…

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Q: You are on an island where a huge explosion at a distance of 500 miles away can be heard, How long…

A: The speed of sound in air at 20 degree Celsius is 343 m/s. The time taken by the huge explosion…

Q: At what temperature is the speed of sound in air 350 m/s?

A:

Q: The wave which cannot propagate through a vacuum is: O a. non mechanical wave O b. sound wave O C.…

A: the waves which do not pass through the vacuum are called mechanical waves.

Q: Two pianos each sound the same note simultaneously, but they are Both out of tune. On a day when the…

A: Given: The speed of the sound is 340 m/s. The wavelength of piano A is 0.769 m. The wavelength of…

Q: Two pianos each sound the same note simultaneously, but they are both out of tune. On a day when the…

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Q: In this problem take the speed of sound to be 341 m/s.    How fast, in meters per second, does an…

A: Write the expression for apparent frequency using Doppler’s shift.

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Q: Two identical sinusoidal waves with wavelengths of 1.5 m travel in the same direction at a speed of…

A: Given data: The wavelength is λ=1.5 m The speed of the wave is v = 25 m/s  The resultant amplitude…

Q: The horn in your car produces sound with a frequency of 80 Hz. While sitting at rest, you honk your…

A:

Q: A group of hikers hears an echo 3.40 s after shouting. How far away is the mountain that reflected…

A: Given: Time, t = 3.4 s  velocity, v = 341 m/s

Q: If you shout across a canyon and hear the echo 0.80 s later, how wide is the canyon? Use the speed…

A: Given  Speed of sound (v) = 340 m/s   Delay time to hear echo (t) = 0.8 s    Let , canyon is ' d '…

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Q: Two automobiles are equipped with the same single-frequency horn. When one is at rest and the other…

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A: Frequency of siren= 5.87 KHz frequency listen by observer = 6.37 KHz

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Q: At what speed is an ambulance coming towards you if the actual and apparent frequencies are 10 and…

A: Actual Frequency, n= 10 HzApparent frequency , na= 12 HzSpeed of sound , v= 330 m/sobserver's speed,…

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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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Q: what would its intensity level have to be to reduce the intensity by a factor of 2.40?

A: Explanation and final answer is in next step.

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Q: A speed boat sounds its horn while moving towards the shore at 45.2 m/s . If people on the shore…

A: From the doppler effect, the expression for the frequency heard by the people on the shore is:

Q: A stone dropped from the top of a tower of height 300 m splashes into the water of a pond near the…

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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.