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: The intensity (I) of a source of sound is 10 °Wm . I, = 10 -12 Wm . What is the sound level of 10…

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Q: Ocean waves are traveling to the east at 3.6 m/s with a distance of 22 m between crests. (a) With…

A: Given that, Velocity of wave (v)= 3.6 m/s eastward Wavelength(λ) = distance between two consecutive…

Q: 22.0 m

A: Given, Speed of sound in air, vair = 343 m/s the horn is 1.2 m above the water surfaceTemperature of…

Q: A sailor working on boat maintenance while at sea hits the side of his boat with a hammer just below…

A: The sound travels from the boat to the ocean floor and back, so the total distance traveled is twice…

Q: (II) Two violin strings are tuned to the same frequency, 294 Hz. The tension in one string is then…

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Q: For an approaching sound source (relative to a stationary observer), the frequency of the sound wave…

A: Required :  Fill in the gaps

Q: Children sometimes play with a homemade “telephone” byattaching a string to the bottoms of two paper…

A: The sound can be defined as the propagation of waves in a medium which arises due to the…

Q: A guitar string made of steel has a length of 40cm and mass of 35gm.when used on a guitar ,a tension…

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Q: Ocean waves are traveling to the east at 3.5 m/s with a distance of 22 m between crests. (a) With…

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Q: "The length of pipe closed at one end it open at both ends is 32 cm each. The frequency of first…

A: We have to find- Frequency of 1st overtone in pipe open at both end. Given- Length of pipe closed at…

Q: - If a thunder is heard by a man 4 seconds after the lightning is seen, how far is the lightning…

A: We know that light travels at speed of light( which is very large). Thus, Lightning seen as early as…

Q: A sound wave in air has a pressure amplitude of 4.00 Pa and a frequency of 5.00 kHz. Take P  0 at…

A: Given: Pressure amplitude for a sound wave is pmax=4 Pa when x=0. Frequency of the sound wave is…

Q: at a distance of 4 m from a fan exerting 50W of mechanical energy, estimate the sound level if the…

A: distance (d) = 4 m Power of fan (P) = 50 W Io = 10-12 Wm2

Q: A sound wave traveling through water must vibrate approximately 1000 times more mass than one…

A: Given question is related to motion of sound waves. Answer Amplitude in air/Amplitude in water =…

Q: (II) Two automobiles are equipped with the same singlefrequency horn. When one is at rest and the…

A: Speed of source, vs=18 m/s   Speed of sound, v=343 m/s   Beat frequency, ∆f=4.5 Hz

Q: (b) The figure below shows a block with a speaker attached to it. The block is connected to a spring…

A: (i) The sound source is moving towards the stationary observer then the apparent frequency heard by…

Q: A train moving at a speed of 220 ms–1 towards a stationary object, emits a sound of frequency 1000…

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Q: (a) Ear trumpets were never very common, but they did aid people with hearing losses by gathering…

A: a) One decibel is defined as,

Q: A truck sounds a horn with a frequency of 115 Hz as it approaches a cliff. The speed of the truck is…

A: Given: Frequency of emitted sound =115 Hz speed of the truck is 10.5 m s–1 speed of sound in air is…

Q: Ocean waves are traveling to the east at 3.7 m/s with a distance of 23 m between crests. (a) With…

A: To determine,(a) With what frequency(f) do the waves hit the front of a boat when the boat is at…

Q: (d) Two people are speaking at the same time, with the voice of one of them slightly higher than the…

A: Pitch is that property of sound that makes it possible to judge higher or lower related to other.…

Q: Ocean waves are traveling to the east at 3.4 m/s with a distance of 20 m between crests. (a) With…

A: (a) Velocity of ocean waves,Vo=3.4 m/sdistance between crests is equal to λλ=20…

Q: (a) (c) : The frequency of open organ pipe is (CET-2008) V 21 +0.4 d V 21+ 0.8 d (b) (d) V 21+ 0.6 d…

A: The general formula for the frequency of an open ended pipe with end correction is  f=v2L+2e here, v…

Q: How far should you stand away from a sound source that generates and 85-W power to cause damage to…

A: Given Power of sound source is P=85 W Maximum hearing intensity of Ear is I= 1 W/m2

Q: Ocean waves are traveling to the east at 3.6 m/s with a distance of 16 m between crests. (a) With…

A: Solution:   Given Values, Speed of waves(v)=3.6 m/s Distance between crests=Wavelength=λ=16 m…

Q: The sound wave propagating through air has a frequency of 1 kHz and a pressure wave amplitude of 10…

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Q: The equation of a sound wave in air is given by p - (001 N/m ) sin[(1000 s ht- (30 m)x) (a) Find the…

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Q: [B] Earthquakes generate two sorts of waves in rock, shear or S waves which travel at about 4.5 km/s…

A: Hai, since there are multiple questions posted, we will answer the first question. The equation for…

Q: A creature can detect very small objects, such as an insect whose length is approximately equal to…

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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.