1 = 0 Observer hears Observer the "boom" Figure P14.35

Q: A bat at rest sends out ultrasonic sound waves at 60.0 kHz and receives them returned from an object…

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 person is standing 20 meters away from a wall. They clap their hands, creating a sound that…

A: The distance between the person and the wall is 20 meters.The speed of sound in air is 343 meters…

Q: A supersonic jet traveling at Mach 2.00 at an altitude of h = 21,000 m is directly over a person at…

A: speed of jet= 2 Mach altitude= 21 km speed of sound= 335 m/s Let x= distance travelled by plane when…

Q: A person with their head sideways in the water sees a beaver slap its tail on the lake surface 1.2…

A: Speed of sound in air at temperature T (in range (0-60°C)) is given by, vair(T)=(331 +…

Q: A bat emits ultrasonic pulses and uses them to navigate and to locate flying insects. If these…

A: Rate of pulse emission: p=2 pulses per second Speed of sound in air: v=344 m/s

Q: A man standing on a cliff hears the echo of his shout after 1 s. If the velocity of sound in air is…

A:

Q: A bat emits a sound at a frequency of 39.0 kHz as it approaches a wall. The bat detects beats with a…

A: Given: Frequency of sound emitted by bat f0 = 39 kHz = 39000 Hz Frequency detects by bat νd = 1070…

Q: Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of…

A: We know that   v = 331m/s + 0.6m/s/C * T     here T is in celcius

Q: A sound wave has a frequency of 632 Hz in air and a wavelength of 0.51 m. What is the temperature of…

A: Given, frequency = 632 Hz wavelength = 0.51 m We know, c is the speed of sound

Q: An aircraft flies directly overhead at an altitude of 5 km. If the sound of the aircraft is heard 6…

A: The sound took 6s to cover a distance of 5km. Use the time-distance formula to calculate the speed…

Q: You are hiking to the top of a small canyon. When you stop for a rest you decide to shout "hello"…

A:

Q: Sound travels at a speed of v = 1570 m/s in water. While underwater a student hears a f = 1.5 kHz…

A:

Q: A plane flies at 1.25 times the speed of sound. Its sonic boom reaches a man on the ground 1.00 min…

A:

Q: At a rock concert, the sound intensity 1.0 m in front of the bank of loudspeakers is 0.10 W/m2. A…

A:

Q: On a 20°C°C night, a bat hovering in the air emits an ultrasonic chirp that has a frequency of 45…

A: It is given that, the temperature of the air is T=20°C the frequency of the source is f=45…

Q: The frequency of the siren of an ambulance is 900 Hz and is approaching you. You are standing on a…

A:

Q: Dolphins rely on echolocation to be able to survive in the ocean. In a 20∘C20∘C ocean, a dolphin…

A:

Q: Microbats use echolocation to navigate and hunt. They emit pulses of high frequency sound waves…

A: Given:  Speed of sound, v = 345 m/s  distance, d = 12.5 m

Q: Doppler ultrasound uses ultrasound to measure blood flow velocities. Suppose that the device emits…

A:

Q: A supersonic jet traveling at Mach 2.80 at an altitude of h = 21,000 m is directly over a person at…

A: For a supersonic boom, the formula related to the Mach number is Sin θ =vtvst=vvs=1M Where vs source…

Q: A bat flying at a speed of 5.7 m/s pursues an insect flying in the same direction. The bat emits a…

A: Given:- A bat flying at a speed of 5.7 m/s pursues an insect flying in the same direction. The bat…

Q: You are hiking along a trail in a wide, dry canyon where the outdoor temperature is T=28.5 degrees…

A:

Q: The time delay between the transmission and the arrival of the reflected wave of an ultrasound…

A: Given,                    the time delay between transmission  (t)  =  0.085 ms…

Q: A hiker shouts towards a vertical cliff that is 465 m away. The echo is heard 2.75 s later. What is…

A:

Q: A negatively-charged particle travels parallel to magnetic field lines within a region of space.…

A: Magnetic force acting on a charged particle is given by,

Q: A researcher tested a sonar device designed to work at a maximum depth of 500 m in seawater.  The…

A:

Q: A woman sees a supersonic plane directly overhead and then hears a sonic boom 4.8 s later. If the…

A: Given data: Altitude of plane is, h=1.95×103 m. Time for passing of plane is, t=4.8 s. Speed of…

Q: Doppler uses ultrasound to measure blood flow velocities. Assume that the device emits sound at a…

A: Given the Parameters : Frequency of device, F = 3.5 MHz = 3.2 × 10³ Hz Speed of sound in tissue = Vs…

Q: An osprey’s call is a distinct whistle at 2200 Hz. An osprey calls while diving at you, to drive you…

A: Frequency of the source is f = 2200 Hz Frequency heard is f0 = 2300 Hz

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.