How fast does a supersonic aircraft fly compared with the speed of sound?

Q: When we crack a whip, a loud noise is created. Why?

A: When we crack a whip, speed of the tip is greater than that of sound. If the speed of a source is…

Q: What is the speed of sound (in feet per second) on a hot day with a temperature of 108°F?

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Q: An object initially traveling at 20. Meters per second sound accelerates uniformly at 6.0 meters per…

A: Given data *The given initial speed of the object is u = 20 m/s *The given acceleration is a = 6.0…

Q: What is the effect of varying object distance?

A:

Q: A low-frequency sound is heard, and then a high-frequency sound is heard. Which sound has a longer…

A: Given data:  Two sound heard First one has Low-frequency and second has high frequency Required:…

Q: When you shout in front of a hill, your own shout is repeated. Explain?

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Q: Two sounds of very nearly the  same frequency are sounded  together. The combined  sound rises and…

A: The beat frequency refers to the rate at which the volume is heard to be oscillating from high to…

Q: A wave with a frequency will have a shorter wavelength. higher

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Q: What is the relationship between speed and frequency?

A: Relation between speed and frequency

Q: A boat at anchor is rocked by waves whose crests are 40 m apart and whose speed is 5 m/s. The waves…

A: distance between the crests = 40 m wave speed = 5 m/s

Q: A student bangs two bits of wood together. She hears an echo from a wall 0.14 seconds later. The…

A: Distance of the wall = 25 m echo sound hear = 0.14 s

Q: It’s takes 2.75s for sound to travel 908m how fast is the sound

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Q: A certain radio station broadcasts at 102.7 megahertz. This is the frequency of oscillation of…

A: Given data: Frequency (f) = 102.7 MHz Required:  Period (T)

Q: A boat floating in deep water is caught in water waves that have a crest-to-crest distance of 4.0 m.…

A: given  crest to crest distance = wavelength λ =4 m  frequency ν = 1 Hz

Q: An object is dropped from the top of a cliff 660 meters high. It's height a voice the ground t…

A: Given data The height of the cliff is h = 660 m. The position equation of the object is given as s =…

Q: How many times greater is the intensity of sound from a concert speaker at a distance of 1 meter…

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

A: When a tree falls on the ground in a forest the impact of tree on the ground produces a disturbance…

Q: A shell fired at a target 800 m distant was heard to strike it 5.0 s after leaving the gun. Compute…

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Q: The speed of sound wave depends * on O pitch O None of the above O temperature O loudness.

A: speed of sound: v=freq*wavelengthv=fλ also, v α T

Q: The sound produced by one object causes the other object to vibrate

A: The sound produced by one object causes the other object to vibrate called resonance.

Q: A bus is moving with a velocity of 5 m/s towards a huge wall. The driver sounds a horn of frequency…

A: Given, Velocity of bus, Vs = 5 m/s Speed of sound in air, V = 335 m/s The driver sounds a horn of…

Q: Choose the BEST answer to the following: The speed of sound is slightly greater on a (a) cold day.…

A: The speed of sound is directly proportional to absolute temperature T by the relation

Q: A boy fires a gun and another boy at a distance of 1040 m hears the sound of firing the gun 2 s…

A: Given data The distance traveled by the bullet is given as d = 1040 m. The time interval is given…

Q: Infrasonic wave is a sound wave with frequency

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Q: Sound waves in air produce areas of increased and decreased Select Choice Select Choice frequency…

A: There are two types of waves depending on the direction of propagation of the wave relative to the…

Q: A boy fires a gun and another boy at a distance of 1020 m hears the sound of firing the gun 3 s…

A: Given : Distance between the boys (d) = 1020 m Time in which sound of firing is heard (t) = 3 s

Q: When a car drives away from you while honking its horn, the horn sounds as if it has compared to the…

A: Pitch of sound wave is directly proportional to its frequency. When a honking car going away from us…

Q: An explosion occurs 10 m away. Given that sound travels at 340 m/s, the time the sound takes to…

A: Distance of source = 10 m  Speed of sound = 340 m/s  We need to find the time taken by sound to…

Q: A stone is dropped from rest into a well. The sound of the splash is heard exactly 1.10 s later.…

A: The formula for speed of sound in air is given by v=331 ms1+TC273°C=331 ms1+11°C273°C=337.6ms The…

Q: Your classmate says that the speed of sound and the frequency of sound depend on the medium in which…

A: Frequency of the sound does not depend on medium it travels. It completely depends on the source…

Q: A marathon runner at 20 miles he starts to walk at 90 steps per minute. What is his new pace…

A: Frequency is oscillations per second.

Q: Decibel is the unit of   A) speed of light B) intensity of sound C) intensity of heat D) None of…

A: Decibel is the unit to measure the intensity of sound.

Q: A stone is dropped into well 100m deep and the impact of sound is heard 4.81s later. Find the speed…

A: The given time value is time taken by the sound impact to be heard. Using kinematic equation,…

Q: What is the answer you got? I can't read

A: Initial velocity, u = 30 m/s Angle, θ = 25° Height, h = 12 m Acceleration due to gravity, g = 10…

Q: The average person has a hearing range of Select Choice to 16,000 Hz. Select Choice 200 Hz 20 Hz

A: Answer: 200 Hz

Q: A stone is dropped from rest into well. The sound of the splash is heard exactly 2.00s later. Find…

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Q: A stone is dropped from rest into a well. The sound of the splash is heard exactly 2.20 s later.…

A: The speed of sound in air at the given temperature is The depth of the well can be given as

Q: Choose the BEST answer to the following: During the time an aircraft produces a sonic boom, the…

A: A shock wave is the waves produced when the disturbance of the medium becomes faster than the speed…

Q: A stone is dropped into a well is heard to strike a water after 4s. Find the depth of the well if…

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Q: why a sonic boom occurs when something travels faster than the speed of sound.

A: Sound, as a wave travels with a finite speed. At standard atmospheric conditions of 20° Celsius,…

Q: What is the speed of sound at a temperature of 300 K?

A: Given data The temperature is given as T = 300 K.   The mathematical expression to calculate the…

Q: A baseball fan sitting in the cheap seats is 150 m from home plate. how much time elapses between…

A:

Q: The Doppler effect is observed when the source of the sound is moving ____ than the speed of the…

A: Doppler effect is the change in frequency of a wave in relation to an observer who is moving…

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.