TABLE 12–1 Speed of Sound in Various Materials (20°C and 1 atm) Material Speed (m/s) Air 343 Air (0°C) 331 Helium 1005 Hydrogen 1300 Water 1440 Sea water 1560 Iron and steel 5000 Glass 4500 Aluminum 25100 Hardwood 4000 Concrete 3000

Q: Due to efficiency comsiderations related to its bow wake, the supersonic transport aircraft must…

A: Mach number is given as the ratio of velocity of object to the velocity of sound in medium. As given…

Q: If you saw a lightning at t = 0 and heard the thunder at about t = 5 s. Estimate the distance of the…

A: Given,  Time, t= 5s, speed of sound, vs=343 m/s.

Q: ssume that the speed of sound is 343 m/s at 20 degrees C. Also assume that a bat uses an ultrasonic…

A:

Q: As the pressure inside a container of gases increases which of the following frequencies will…

A: According to kinetic molecular theory of gases, when you increase the pressure of gas then rate of…

Q: (II) A meteorite traveling 9200 m/s  strikes the ocean.Determine the shock wave angle it produces…

A: a) The expression of angle of shock wave is θ=sin-1vsoundvm Substitute values in the above equation…

Q: Sound travels better in solids than in gases. Why?

A:

Q: Does the velocity of sound in air depend on the frequency of the sound?

A:

Q: (II) Estimate. the. frequency. 313 x 445ksound of the ocean" when you put your ear very near a…

A:

Q: The frequency reminds 1090.7 Hz. The air temperature changes to 45 ˚C. Calculate to the nearest…

A: variation of speed of sound with temperature is given by v=331.3+( 0.606×T) T is temperature in…

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

A: Given, t = 0.80 s  The width of the canyon can be determined by,  2 x width = speed of sound x time…

Q: An explosion occurs just below the surface of the water, will you hear it first if you are on the…

A: According to the problem, the explosion happens under the water; therefore, we consider two cases to…

Q: (I) (a) What resonant frequency would you expect from blowing across the top of an empty soda bottle…

A: To find: (a) What resonant frequency would you expect from blowing across the top of an empty soda…

Q: ball that is thrown at a 45 degree angle from the ground will travel the furtherst distance.How…

A: The given situation is the case of projectile motion , for which figure is given below: Since…

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.