If the sound of an airplane does not come from the part of the sky where the plane is seen, does this imply that the airplane is traveling faster than the speed of sound? Explain.

Q: Why is the speed of sound in water faster than the speed of sound in air?

A: The sound travel faster when the molecules collides faster. If the distance between the molecules is…

Q: A celebrity holds a press conference, which is televised live. A television viewer hears the sound…

A: distance of viewer from television set (d) = 1.8 m distance of reporter from microphone (d') = 4.5 m…

Q: A vehicle passes you traveling at 56.3 meters per second while you are standing still. If its engine…

A:

Q: During a fireworks show, a family sees the spray of sparkles from exploding fireworks high in the…

A:

Q: Sound waves sent by a dolphin travel with a speed of 1500 m/s in water. A dolphin emits sound wave…

A:

Q: #3. Using one of the equations given, explain what a stationary observer sitting on a moun- tain top…

A: Sound is nothing but oscillation in pressure traveling through the medium. It is a longitudinal wave…

Q: I can’t tell where sound is coming from when I’m underwater. It seems to be coming from inside my…

A: Sound travels more efficiently in water due to the relative density of water as a medium. Sound…

Q: If the speed of sound were dependent on its frequency, would you enjoy a concert sitting in the…

A: Given:  The speed of sound were dependent on its frequency

Q: Compared to the speed of a 400 Hz sound through water, the speed of a 200 Hz sound through water is…

A: The speed of sound varies greatly depending upon the medium it is traveling through.

Q: A stone is dropped from rest into a well. The sound of the splash is heard exactly 3.00 s later.…

A:

Q: •• You are on a transatlantic flight traveling due west at 800 km/h. An experimental plane flying at…

A:

Q: Can sound be propagated in a vacuum? Explain

A: Short answer : NO

Q: A bat is flitting about in a cave, navigating via ultrasonic bleeps. Assume that the sound emission…

A: Given that The original frequency of the bat, fs=37.1kHzfs=37100Hz The velocity of the bat…

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: The shock wave off the front of a fighter jet has an angle of θ = 70.00° . The jet is flying at 1200…

A: The half angle θ of the mach cone  sinθ=vsoundvjet Rearrange and substitute vsound=vjetsinθ=1200…

Q: A flat smooth surface will avoid the diffusion of sound energy in all directions. Select one: True O…

A: Step1 - Here we will understand the concept that will be used to solve the question. Reflection of…

Q: : Two cars red and gray are moving towards each other with a speed of 1832 cm/s. If the red car is…

A:

Q: 3. Two canoes are 10 m apart on a lake. Each bobs up and down with a period of 8.0 seconds. When one…

A: As we know that the speed of a wave is given by, v = f λ  -------------(1) Where f is frequency and…

Q: When dolphin swims close to its prey, it transmit sound to figure out details (like direction where…

A: considering the source i.e, the prey and the observer i.e, dolphin both are moving such that the…

Q: When a sound wave moves past a point in air, are these changes in the density of air at this point?…

A:

Q: Doppler effect is not observed in sound wave . Choose one correct example from the given examples.…

A: Required : Doppler's effect is not observed in which case.

Q: The change in direction of sound waves caused by variation in its velocity from point to point , is…

A: Ques:

Q: Suppose a source of sound moves at right angles to the line of sight of a listener at rest in still…

A: qq1

Q: Consider a vibrating string that makes a sound wave that moves through the air. As the guitar string…

A: The correct option is  (C) .  i.e toward and away from the guitar string.

Q: A sound wave in a tube or on a string is a type of wave known as?

A: The sound wave is a pressure wave which is produced due to vibration in the air. When sound wave…

Q: Two open organ pipes of lengths 60cm and 60.5cm produce 2 beats per second. Calculate the velocity…

A: The frequency of the first organ pipe is,The frequency of the second organ pipe is,

Q: As it approaches a hiker standing on the highway, a car traveling at 100 km/h blows its horn.…

A: speed of car (v) = 100 km/hr frequency of horn (f) = 440 Hz Temperature = 0oC

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

A: Write the kinematic expression for distance travelled

Q: Sound is an example of a(n) wave. O longitudinal wave O surface wave transverse

A: Transverse waves are waves in which the particles of the medium vibrate perpendicular to the…

Q: 49.) A process called convergence is when two or more waves overlap and combine to form a new wave…

A: When two or more waves overlap and combine to form a new wave, then the process is called…

Q: When dolphin swims close to its prey, it transmits sound waves to figure out details (like direction…

A:

Q: 32. To navigate, a porpoise emits a sound wave that has a wavelength of 1.5 cm. The speed at which…

A:

Q: A sound wave with frequency 50 Hz moves at a speed of around 350 m/s in air. It travels into a wall,…

A: Required : Frequency of the sound in the wall.

Q: the reflection of sound is often heard as an echo. if a person claps her hands and hears an echo off…

A: In order to hear echo, the sound has to go from source to wall and then back to source.

Q: 2. In a medium where the speed is constant, wave A has twice the frequency than another wave B. The…

A:

Q: A bat is flitting about in a cave, navigating via ultrasonic bleeps. Assume that the sound emission…

A: GIVEN : sound emission frequency = f = 37.1 kHz velocity of air = v = 343 m/s velocity of the bat…

Q: What are the factors that affect the speed of sound in air? Explain.

A: Speed of sound depends primarily on the density and viscosity of the medium through which it…

Q: Explain transverse and longitudinal waves with appropriate examples.

A: Transverse and longitudinal waves can be defined as:

Q: A dolphin sends out a series of clicks to find out if there are fish nearby. The velocity of sound…

A:

Q: A man standing between two Clift clap his hand and hear two echoes after 3.65 and 4.2 respectively.…

A: The man is in between the two cliffs as shown is figure here, The man listens two echoes after 3.65…

Q: Is the speed of sound independent of frequency? Explain.

A: Yes speed of sound is independent of frequency. It depends on medium in which it travel.

Q: A concave smooth surface will avoid the diffusion of sound energy in all directions. Select one: O…

A: Above  statement is TRUE. Reason 1)concave surfaces focus sound waves, thereby concentrating the…

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.