A small explosion in the construction of a railway line is observed by a worker who is 800 m away from it. He has one ear leaning against the rails and therefore hears two bangs. What is the speed of sound in iron? How long after the explosion does he hear the first bang and after how long the second?

Q: A car horn has a frequency of 720 Hz. In which of the following situations would you hear an average…

A: Given: The actual frequency of the car is 720 Hz. The apparent frequency is 690 Hz.

Q: When the Hokee fish migrates from deep Pacific waters to the west coast of North America each…

A: GivenFrequency (f) in air and in seawater  (frequency of A flat)= 415.3 HzSpeed of sound in seawater…

Q: A student stands several meters in front of a smooth reflecting wall, holding a board on which a…

A: the speed of the transverse string is,

Q: A sound wave of frequency 300 Hz has an intensity of 1.00 mW/m2.What is the amplitude of the air…

A:

Q: A school of dolphins is searching for a meal and uses echolocation to satiate themselves. They find…

A:

Q: The frequency of G, on the piano is 196.0 Hz. (a) What is the wavelength (in m) of sound with this…

A: Given data as per question frequency   =196Hz

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

A: The speed of sound in air at 20 degree Celsius is 343 m/s. The time taken by the huge explosion…

Q: A train moves towards you at a speed of 90.0 km/h as you stand on the platform. The train has a…

A: Given: Velocity of the train (vs) = 90 km/h = 25 m/s Velocity of sound (v) = 340 m/s Frequency of…

Q: The speed of sound in air is 343 m/s, while the speed of sound in metal-x is 1570 m/s. If an…

A:

Q: A certain sound source is increased in sound level by 36 dB. By what multiple is (a) its intensity…

A: Given that:- Sound level increased by 36dB

Q: an ambulance moving toward a person at 126 km/hr. The person is jogging towards the ambulance at 19…

A:

Q: A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If…

A: Given Data: The initial intensity of a sound is, Ii=2×10-5 W/m2 The amplitude increases the…

Q: A tuning fork is sounded near the end of a tube (one end closed) of variable length. The tube…

A:

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

A: In this given question ;  Distance from man where explosion occur = 500 miles  Find time taken by…

Q: Suppose you want to build a musical instrument with a hollow pipe that is open at one end and closed…

A:

Q: If a solid bar is struck at one end with a hammer, a longitudinal pulse propagates down the bar.…

A: Given: The young modulus of aluminum is Y=9.6X1010 The density of aluminum is ρ=7.8X103 kg/m3. The…

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: 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 tuning fork that vibrates at a frequency 680 Hz is placed over an 80 centimeter long cylinder that…

A:

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

A:

Q: A certain string, clamped at both ends, vibrates in seven segments at a frequency of 719 Hz. What…

A:

Q: A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If…

A:

Q: The horn in your car produces sound with a frequency of 80 Hz. While sitting at rest, you honk your…

A:

Q: 17 A tennis player hits a ball hard and 0.40 s later hears the echo from a wall. The speed of sound…

A: Given The time by which echo reaches the player is t=0.40 s. The speed of sound in the air is v=330…

Q: A boat on the surface of the water has a major malfunction which results in a loud explosion. Who…

A: The speed of sound c in water can be calculated as,

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

A:

Q: Two automobiles are equipped with the same single-frequency horn. When one is at rest and the other…

A: Given data The velocity of the first automobile is given as v = 15 m/s. The beat frequency is given…

Q: Suppose you hear a clap of thunder 8.20 s after seeing the associated lightning strike. The speed of…

A: Given Data : The time difference between seeing the lightning thunder and hearing the soun d is…

Q: A train with a whistle that emits a note of frequency 800 Hz is approaching an observer at a speed…

A:

Q: A spherical vase of 12 cm in diameter has an 8 cm long neck connected to hit. The neck has a…

A: Given,The radius of the spherical vase  = 6cmLength of the neck =8cmRadius of the neck =2cm

Q: If the amplitude of a sound wave is tripled, the intensity will O decrease by a factor of 9.…

A: The intensity of a sound wave depends on a number of factors: Frequency of sound- The intensity of…

Q: You are on the relaxing on the beach (not moving). A speedboat honking its 450 Hz horn is coming…

A:

Q: A guitar string vibrates at a frequency of 330 Hz with wavelength 1.40 m. The frequency and…

A: Given data Frequency of sound wave, ν=330 Hz Wavelength,λ=1.4 m

Q: A pin with a mass of 0.15 g falls from rest on a table 1.0 m high. Upon reaching the floor, 0.02% of…

A:

Q: A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If…

A: Given:  I = 2 x 10-5 W/m2 Amplitude increases by 3 %

Q: An interstate highway has been built through a neighborhood in a city. In the afternoon, the sound…

A: Given

Q: A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. If the speed of…

A:

Q: At an airport, a person is made to walk through the doorway of a metal detector, for security…

A: The principle behind the metal detector is Electromagnetic induction. The emf induced by the motion…

Q: There is a tube of length 1.0 m with one end closed. You clapped your hand at the mouth of the tube…

A: Velocity =distancetime here when we clap hands on it’s mouth then it travels 1 m straight and…

Q: Wyle E. Coyote hears a constant “Beep! Beep!” from around the corner of a cliff. Thinking it might…

A: Given data: The speed of the truck is, vt = 25 m/s The speed of the Coyote is, vc = 100 m/s The mass…

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

A: Calculating the time taken by the stone to reach the bottom of the tower:

Q: What is the beat frequency heard when two organ pipes, each open at both ends, are sounded together…

A: The beat frequency is define as                                   f1 - f2 = v2l1 - v2l2 Given that…

Q: A vibrating tuning fork is held over a water column with one end closed and the other open. As the…

A:

Q: A police officer at rest by the side of a highway uses her speed gun to send an ultrasound wave of…

A:

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.