A rock is dropped into an abandoned mine and a splash is heard 6 s later. Assuming that it takes a negligible time for the sound to travel up the mine shaft, determine the depth of the shaft and how fast the rock was falling when it hit the water.

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: A group of hikers hears an echo 2.80 s after shouting. How far away is the mountain that reflected…

A:

Q: Harbor seals, like many animals, determine the direction from which a sound is coming by sensing the…

A: Sound waves travel faster in water than in air. So, the difference in time of arrival of sound in…

Q: Two trains on separate tracks move toward each other. Train 1 has a speed of 130 km/h; train 2, a…

A:

Q: A supersonic jet traveling at Mach 2.50 at an altitude of h = 23 000 m is directly over a person at…

A:

Q: A train is moving past a crossing where cars are waiting for it to pass. While waiting, the driver…

A: The expression to solve for the apparent frequency heard by the passenger at the back of the train…

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

A:

Q: A man stands by the roadside when an ambulance passes by him with constant velocity 18 m s-1. The…

A:

Q: A signal is transmitted from a ship and an echo is received from an object below the ship 4 s later.…

A:

Q: During a thunderstorm, 5.0 s elapses between observing a lightning flash and hearing the resulting…

A: The speed of light (u) = 3 ×108 msThe speed of sound in air (v) = 344 msLet the distance of the…

Q: Which of the following is/are TRUE about the sound wave? A. Sound wave does not carry energy. B.…

A: To determine: The correct option.

Q: Which of the following statements are TRUE of the speed of sound? Identify all that apply. The…

A:

Q: Two trains on separate tracks move toward each other. Train 1 has a speed of 112 km/h; train 2, a…

A:

Q: Apolice car emits sound with a frequency of 900.0 Hz is moving at 400 m/s towards an observer moving…

A: Given: The frequency of the sound is 900 Hz. The speed of the police car is 40.0 m/s. The speed of…

Q: A source of sound is moving directly away from you:  you are stationary relative to the still air…

A: Due to the relative motion between source and listener the frequency of sound heard by the listener…

Q: 23) A siren emitting sound of frequency 1000 Hz approaches a stationary observer at one-half the…

A: As per policy i have solved first question out of multiple questions.

Q: A train is moving past a crossing where cars are waiting for it to pass. While waiting, the driver…

A: For the part a we need to calculate the part b first. (b) The horn's frequency is given by the mean…

Q: Two trains on separate tracks move toward each other. Train 1 has a speed of 1.30 x 102 km/h; train…

A:

Q: A lightning bolt is observed and the resultant thunderclap is heard 5 seconds afterwards. Assuming…

A: Given :- speed of sound in air  v= 340 m/s   time after which Thunderclap heard is  t = 5 sec

Q: Female mosquitoes emit a buzz at 400 Hz, whereas male mosquitoes typically emit a buzz at 600 Hz. As…

A:

Q: A firetruck which is moving with a velocity 100km/h is producing a siren of frequency 1000HZ. The…

A:

Q: Two sound sources are located at x=0 and x=1m. Both sources emit sound waves at frequency 1kHz. The…

A: Given: One source is at x=0 Other source is at x=1m Frequency, f=1 kHz Sound of speed, v=344 m/s…

Q: The frequency of an ambulance siren is 1000 Hz at rest. Ahmad, which is in his car, hears the…

A: frequency of ambulance siren at rest = 1000 Hz Frequency heard by Ahmad in his car = 1010 Hz

Q: An ambulance car with 800 Hz siren sound. A stationary listener hears the approaching car with…

A:

Q: Two trains on separate tracks move toward one another. Train 1 has a speed of 120 km/h, train 2 a…

A:

Q: A train is moving past a crossing where cars are waiting for it to pass. While waiting, the driver…

A: Let fa be the apparent  frequency observed by the person in front, fb is the apparent frequency…

Q: You place your ear onto a steel railroad track and hear the sound of a distant train through the…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: A train is moving past a crossing where cars are waiting for it to pass. While waiting, the driver…

A: The front of the train is moves away from the sound source and the rear part moves towards the sound…

Q: My heart beats 124 times in two minutes. Determine the frequency of my heartbeat. O 2.0 Hz O 0.48 Hz…

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Q: A train is moving past a crossing where cars are waiting for it to pass. While waiting, the driver…

A:

Q: In echolocation, a RADAR used infrared to determine the distance of a far away object. Estimate this…

A: Distance of an object is being determined, Sender received back the signal after time 5 microseconds…

Q: As a sound wave propagates further over time, which of the following would be true? * The ampltidue…

A: Sound waves are kind of vibration that propagates as an acoustic wave through transmission wave such…

Q: Two trains on separate tracks move toward each other. Train 1 has a speed of 149 km/h; train 2, a…

A: Speed of observer train(Vo)=149 km/h speed of source train( Vc)=95.0 km/h source frequency (fo)= 500…

Q: An ambulance is traveling East at 40m/s. The siren emits a fixed frequency of 440Hz. Each of the…

A:

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 person stands at a point 348 m in front of the face of a sheer cliff. If the person shouts, how…

A:

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: the train's speed (in m/s)  m/s (b) the horn's frequency (in Hz)

A:

Q: a stone is thrown vertically upward over the top of the wall with a velocity of 21 m/s and the…

A: Initial velocity of stone,(u)=21 m/sec ----(1) [Given] Final velocity of the stone ,(v)=0 m/sec…

Q: A chimpanzee is standing not too far from a tall cliff. He lets out a loud bark and is startled to…

A: Distance = Speed X time  2d =v*t  2 d = 331*0.83  d = 137.365 m

Q: A train is moving parallel to a highway with a constant speed of 20 m/s. A car is traveling with a…

A: The train is moving at speed 20 m/s.  The car travels at speed 40.0 m/s.  The frequency of the car's…

Q: 1 A train approaching a hill at a speed of 40 km/hr sound a whistle of frequency 580HZ when it is at…

A:

Q: At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down…

A: Given: Observer's frequency, fo=416 Hz Source frequency, fs=440 Hz observer speed = 18 speed of…

Q: Ultrasound in Medicine. A 2.00 MHz sound wave travels through a pregnant woman’s abdomen and is…

A: Given-Sound travel trough pregnants womens abdomen(Vs) = 2 MHz= 2×106 HzFreqency of  reflected sound…

Q: A cannon fires a shell directly at you from 2000 m away, at a speed of 216 m/s. The speed of sound…

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.