A plane is flying at Mach 1.2, and an observer on the ground hears the sonic boom 15.00 seconds after the plane is directly overhead. What is the altitude of the plane? Assume the speed of sound is vw = 343.00 m/s.

Q: What frequency (in Hz) is received by a person watching an oncoming ambulance moving at 106 km/h and…

A: This is the question is based on the Doppler's Effect.    The shifting of the frequency can be…

Q: In this problem take the speed of sound to be 348 m/s. A. How fast, in meters per second, does an…

A: Given: speed of sound, v = 348 m/s

Q: A group of hikers hears an echo 2.00 s after shouting. How far away is the mountain that reflected…

A: Given: time after which echo is heard, t = 2.0 s  speed of sound wave, v = 346 m/s

Q: If a plane is flying at a speed so that the apex half-angle of its shock wave is 30 degrees. What is…

A: The speed of the sound,

Q: A police car is sounding a siren with 1280 Hz on a 20A???? You are driving down the road at 118…

A: Given data The frequency of the siren on 20° is f = 1280 Hz. The velocity of the car is vc = 118…

Q: The bulk modulus and the density of a liquid is B = 584 MPa and ρ = 1,027 kg/m3, respectively. What…

A: Given data: bulk modulus B = 584 MPa.   Density of liquid (ρ0) =1027 kg/m3.

Q: You are walking along a small country road one foggy morning and come to an intersection. While you…

A:

Q: If a human ear canal can be thought of as resembling an organ pipe, closed at one end, that…

A:

Q: A speaker produces 100 (w) of power, If the speaker projects sound uniformly into the forward…

A:

Q: A person at rest hears a trumpet note of frequency fi from a source moving toward him with a…

A:

Q: The sound level at a distance d347 m from a loudspeaker is 70 dB. What is the power (in Watt) at…

A:

Q: What is the speed of sound, in the unit of m/s, in a medium that has density of ρ = 792 kg/m3 and…

A: Answer-           speed of sound is 1019.383 m/s Solution-

Q: If the velocity of blood flow in the aorta was (m/s 0.32), what pulse frequency would you expect if…

A:

Q: What is the sound intensity level in decibels for a sound wave traveling in air at 20°c and having a…

A: Pressure amplitude (P) = 0.5 Pa density (d) = 1.2 kgm3Speed of sound (v) = 343 ms

Q: You are standing 50 m away from a speaker and observe that the intensity of the sound wave coming…

A:

Q: A sound wave has an intensity level of 118.8 dB in air. The density of air at 20.0°C is ρ = 1.20…

A: Given intensity level of sound =β = 118.8 dB density of air = ρ = 1.20 kg/m3 speed of sound = v =…

Q: Two pianos each sound the same note simultaneously, but they are Both out of tune. On a day when the…

A: Given: The speed of the sound is 340 m/s. The wavelength of piano A is 0.769 m. The wavelength of…

Q: At what frequency does the prankster hear the yell?

A:

Q: Two pianos each sound the same note simultaneously, but they are both out of tune. On a day when the…

A: Given value--- speed of sound = 340 m/s. wavelength of piano A = 0.762 m. wavelength of piano B =…

Q: A sound wave propagates in air at 21°C with frequency 4.50 kHz. It passes through a region where the…

A:

Q: A bat, moving at 5.00 m/s, is chasing a flying insect. If the bat emits a 40.0-kHz chirp and…

A:

Q: > A point source emits sound isotropically. At a distance of 3.00 m from the source, the sound level…

A:

Q: A speaker produces 100 (w) of power, If the speaker projects sound uniformly into the forward…

A: Intensity of sound is defined by  power per unit area   intensity I is,   I= P/A  Where,  P is power…

Q: A trumpet creates a sound intensity level of 9.80 x 10 dB at a distance of 1.10 m. (a) What is the…

A: Since there are 4 questions that yet to be answered, we will solve the first 3 only as per the…

Q: What is the frequency heard by a stationary boy, when a sound source approaches him with a speed of…

A: Given: The frequency of the source is 500 Hz. The speed of the boy is 0 m/s. The speed of the source…

Q: The sound level at a distance d%3D28 m from a loudspeaker is 70 dB. What is the power (in Watt) at…

A: Sound intensity level,  Threshold sound intensity,  Distance from the speaker,

Q: Two pianos each sound the same note simultaneously, but they are both out of tune. On a day when the…

A:

Q: A 57-dB sound wave strikes an eardrum whose area is 5.0×10−5m^2. The intensity of the reference…

A: The formula for the sound intensity level is: Take anti-log on both sides.

Q: You are walking along a small country road one foggy morning and come to an intersection. While you…

A: Frequency of siren= 5.87 KHz frequency listen by observer = 6.37 KHz

Q: One day when the speed of sound in air is 343 m/s, a fire truck traveling at vs = 25 m/s has a siren…

A:

Q: You are on an island where a huge explosion at a distance of 500 miles away can be heard. How long…

A: Convert miles to meter. 500 miles=500 miles×1609.34 m1 miles              =804670 m

Q: k when an  approaching driver blows his  horn. If the true frequency of  the horn is 264 Hz and the…

A: You are crossing in a  crosswalk when an approaching driver blows his horn.  If the true frequency…

Q: The sound level at a distance d328 m from a loudspeaker is 70 dB. What is the power (in Watt) at…

A:

Q: While floating in the ocean, a dolphin emits a sound wave directed toward the hull of an ocean liner…

A: Given   Distance between dolphin and hull  (d) = 424 m Water temp   =  25 degree C Speed of sound in…

Q: If a human ear canal can be thought of as resembling an organ pipe, closed at one end, that…

A:

Q: A speaker produces 100 (w) of power, If the speaker projects sound uniformly into the forward…

A: Given: Power, P=100 W Distance, r=2 m Formula: Intensity: For hemisphere, So, intensity is given…

Q: A sound wave travels through a column of carbon dioxide at STP. Assuming a density of p= 1.98 kg/m3…

A:

Q: Two sound waves arrive to an observer, the first is loud at 2 W/m ^2 and the second one is quieter…

A: Write the expression for the intensity of  first sound.

Q: Suppose a bat emits ultrasound at frequency fbe = 79.05 kHz while flying with velocity vb = (9 m/s)i…

A:

Q: A speaker produces 100 (w) of power, If the speaker projects sound uniformly into the forward…

A: Given: Power of speaker, P = 100 W Radius, r = 1 m

Q: As you stand by the side of the road, a car approaches you at a constant speed, sounding its horn,…

A: Given: The speed of the observer is 0 m/s. The observed frequency is 50 Hz when the car approaches…

Q: For the scenario in Question 9 with the speed of eagle 11.00 m/s, what frequency does the blackbird…

A: Speed of eagle,Vs=11 m/s Speed of blackbird,V0=11.35 m/s Frequency of sound,n =370 Hz Speed of…

Q: A vertical tube one meter long is open at the top. It is filled with 75 cm of water. If the velocity…

A: The vertical tube is filled with three fourth of water. The relation between the wavelength and…

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.