(II) An airplane travels at Mach 2.1 where the speed of sound is 310 m/s (a) What is the angle the shock wave makes with the direction of the airplane’s motion? (b) If the plane is flying at a height of 6500 m, how long after it is directly overhead will a person on the ground hear the shock wave?

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A: The wave function of a standing wave is yx,t=2ymsinkxcosωt=2ymsin2πλxcos2πνt For this case, the wave…

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Q: Estimate the speed of sound in air at standard temperature and pressure. The mass of 1 mole of air…

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A:

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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…

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Q: Transverse waves are sent along a 5.40 m long string with a speed of 93.00 m/s. The string is under…

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Q: Find the temperature at which the speed of sound in air is double its value at 0 degree C.

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Q: The speed of sound in air is 343 m/s, while the speed of sound in metal-x is 1570 m/s. If an…

A:

Q: If a tree falls in a forest where there is no one to hear, does it make a sound?

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A:

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Q: Show that the speed of sound in 20.0°C air is 343 m/s, as claimed in the text.

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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.