A physicist at a July fireworks display has a stopwatch. She times the lag between when she sees the flash and when she hears it at 0.55 s. The temperature in July is 25 °C. (a) Can the finite speed of light be neglected for this problem? Show quantitatively. (b) How distant is the firework from the physicist? (c) In December, when the air temperature is -10 °C, what lag time will she measure?

Q: Explain and show complete solution with given. Label the formulas used.

A: Given: Velocity of train, us =40.0 m/s Frequency of sound emitted by train, fs=5.00×102 Hz…

Q: he calculates the speed of the train. What value does he find?

A: As per Doppler’s effect, the frequency observed by the student when the train approaching him, can…

Q: A boat is floating at rest in dense fog near a large cliff. The captain sounds a horn at water level…

A: Given: The speed of sound in saltwater is Vs = 1470 m/s. The speed of sound in air is Va = 340 m/s.…

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 loudspeaker emits a sound wave at a particular frequency. If the intensityof the wave is doubled,…

A:

Q: An echo is sound that returns to you after being reflected from a distant surface (e.g., the side of…

A: Given: An echo is sound that returns to you after being reflected from a distant surface (e.g., the…

Q: At Zion National Park a loud shout produces an echo 1.50 s later from a colorful sandstone cliff.…

A: Given: Time taken t = 1.50 s Speed of sound in air V = 343 m/s We have to calculate how far is the…

Q: The hottest recorded temperature in the history of the United States is 134 °F, which is 57 °C. What…

A:

Q: Ethan was driving, moving at 14.0 m/s, approaching the open window of Khuslen who was experimenting…

A:

Q: An airplane is flying at Mach 1.50 at an altitude of 7500.00 meters, where the speed of sound is v =…

A: To determine,Mach number(M)=1.50altitude(h)=7500.00 mspeed of sound is v = 343.00 m/s

Q: A baseball hits a car, breaking its window and triggering its alarm which sounds at a frequency of…

A:

Q: Why do roofs of gymnasiums and churches seem to fail more than family homes when an earthquake…

A:

Q: A thunder was heard 2 sec later after the lightning is seen. If the distance of lightning is 698 m…

A: Given data: Time (t) = 2 s Distance traveled by sound wave (d) = 698 m Required: The speed of sound

Q: While sitting next to a road on a calm, 27.9°C, evening, you see an ambulance's lights flashing in…

A:

Q: If you observe a 6.0 second delay between a flash of lightning and its thunder, about how far away…

A: Given : t=6 sec v=343 m/s d=?

Q: In this problem take the speed of sound to be 341 m/s.    How fast, in meters per second, does an…

A: Write the expression for apparent frequency using Doppler’s shift.

Q: This ship is surveying a lake bed with ultrasonic sound that travels 1400 m/s in freshwater. The…

A: Speed of ultrasonic sound in water, v = 1400 m/s  Time taken by sound to reach back to the observer…

Q: A sound source and a listener are both at rest on the earth, but a strong wind is blowing from the…

A: The apparent change in the frequency of sound, when there is a relative motion between the observer…

Q: Sound can be heard for great distance at night or after a rainfall. Why?

A: At night or after a rainfall, the medium becomes more humid, and there are several water droplets…

Q: A high-speed train is traveling at a speed of 44.7 m/s when the engineer sounds the 415-Hz warning…

A: according to doppler's effectfo=v+vov+vsfsfo=observer frequency ofsoundv=speed of sound…

Q: A baseball hits a car, brcaking its window and triggering its alarm which sounds at a frequency of…

A: Original frequency = 1190 Hz Speed of boy (observer) = 7.8 m/s away from the car (source) Speed of…

Q: What is the difference in the speed between a sound generated at the equator, at a temperature of 45…

A: Te=Temperature at the equator=45°CTn=Temperature at the north pole=0°C

Q: At what speed is an ambulance coming towards you if the actual and apparent frequencies are 10 and…

A: Actual Frequency, n= 10 HzApparent frequency , na= 12 HzSpeed of sound , v= 330 m/sobserver's speed,…

Q: An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the…

A: Write the formula for frequency of whistle heard while the train is approaching.

Q: john was driving , moving at 17.0 m/s, approaching the open window of Khuslen who was experimenting…

A: Observed frequency f' = (v+ vo)*f /(v-vs)  When the observer/source is closing the distance between…

Q: A man fires a gun and hears an echo 2.4 seconds after. How far is the reflecting surface if air…

A:

Q: You hear the sonic boom of a high-speed jet plane exactly 4.00 s after it passes directly overhead…

A: Given:  time, t = 4 sAngle = 25oSpeed of sound, v = 325 m/sFind: How fast is the plane…

Q: On a typical Martian morning, the very thin atmosphere (which is almost entirely carbon dioxide) is…

A: The speed of sound in air can be given by v=331m/s1+T273K

Q: The speed of sound in air is 332m/s at 0 degree C. At what temperature will the velocity become 1/2…

A: The speed of sound v in an ideal gas is proportional to the square root of the absolute temperature.

Q: A group of hikers hears an echo 4.00 s after shouting. How far away is the mountain that reflected…

A: Given time t=4s and speed of sound =342m/s We have to find how far away is the mountain that…

Q: A baseball hits a car, breaking its window and triggering its alarm which sounds at a frequency of…

A:

Q: Ethan was driving, moving at 16.0 m/s, approaching the open window of Khuslen who was experimenting…

A: Given: The speed with which Ethan (the perceiver) is approaching the open window of Khuslen: vp =…

Q: Knowing that the speed of sound on a particular day is 340ms', Luke calls COO-EE from a lookout…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The shape of pulse gets distorted during propogation in a dispersive medium, Why?

A: The shape of a pulse gets distorted during propagation in a dispersive medium, because a sound pulse…

Q: The power output of a certain public address speaker is 5.1 W. Suppose it broadcasts equally in all…

A: Given value--- output power = 5.1 W. beta = 120 dB. We have to find--- At what distance (in cm)…

Q: What resonant frequency would you expect from blowing across the top of an empty soda bottle that is…

A: Solution: The frequency of a closed tube is given by: f=v4L............................ (i) Here, v…

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: of this frequency in air at a temperature of 20.0°? x 10

A:

Q: The power output of a certain public address speaker is 8.8 W. Suppose it broadcasts equally in all…

A:

Q: Discuss the results and comment on the source of errors. -What is the dependence of temperature,…

A: Given that: vsound=343 m/s

Q: A stone is dropped into a deep canyon and is heard to strike the bottom 13.2 s after release. How…

A: Initial velocity of stone (u) = 0 m/s Time taken to heard the sound (T) = 13.2 seconds speed of…

Q: A Girl Scout is taking a 10.00-km hike to earn a merit badge. While on the hike, she sees a cliff…

A: The loudness of sound is mostly dependent on the amplitude of the wave. Sound waves can propagate…

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.