Sound. Calculate the decibels associated with attending a football game in a loud college stadium if the intensity is I = 1×10-03w /m² .

Q: The Doppler effect causes a sound moving towards you to sound higher pitched and a sound moving away…

A: speed of sound (c)= 761 miles per hr using doppler's formula : f =…

Q: 10. Determine the number of decibels from a Jack Hammer with sound intensity of 3.2 x 10 wattsim²

A:

Q: You are standing still at the edge on a rioad. A frequency of 389 Hz is being sung by a person…

A: Whenever there is a relative motion between an observer and a distant sounding source, the frequency…

Q: On the planet Arrakis a male ornithoid is flying toward his mate at 25.0 m/s while singing at a…

A: It is given that, vs=25 m/sfs=1200 HzfL=2400 Hz

Q: 7. One of the largest organ pipes is in the auditorium organ in the convention hall in Atlantic…

A:

Q: A 410-Hz sound travels through pure argon. The wavelength of the sound is measured to be 0.78 m.…

A:

Q: Meatloaf (google/youtube him if you’re too young to know the reference) plays an F on his guitar as…

A: Velocity of  = 100mph  (V)= 44.7m/s Frequency of guitar = 349.23Hz Velocity of sound (V…

Q: After inhaling helium gas, a person talks with a high pitched voice. One of the reasons for this is…

A:

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: Sound intensity The sound intensity level formula is a = 10 log (I/I). (a) Solve for I in terms of a…

A: (a)  α = 10 logIIologIIo = α10Take antilog on both the sidesIIo = 100.1 αI = Io×100.1 α

Q: 13. A 100 cm pipe is open at one end and closed at the other end. When air is blow at 150 Hz.…

A: Given      Length of pipe =  100 cm  L = 1 m  Frequency  = f = 150 Hz  Velocity of sound in pipe  =…

Q: An audio device sends out audio waves at frequency 4kHz. Draw a wave and then calculate the distance…

A:

Q: A tuning fork vibrating at 512 Hz falls from rest and accelerates at 9.80 m/s2 . How far below the…

A: Write the expression for observed frequency.

Q: al Sound Calculate the wavelength of wave that has a frequency of 126 Hz and O wame speed of 15000…

A: Introduction :  In this question we are provided with value of  frequency and  wave speed . with…

Q: 3. Complete the chart below for a 50 cm string with a fundamental frequency of 100 Hz

A: .

Q: 9. Determine the number of decibels from a normal conversation with sound intensity of 10 wattslm.

A: Answer: Given data,  Intensity of sound (I)=10-8 watts/m2

Q: 6. What is the length of brass pipe if you measure a sound wave to take .5 s to travel the length of…

A: Time taken to travel through length ,"t"= 0.5s. now , speed of sound in brass is "v"= 4300m/s .…

Q: Dolphins make sounds in air and water. What is the ratio of the wavelength of a sound in air to its…

A:

Q: A dolphin is swimming at 20.00meters per second towards a scuba diver. The dolphin is emitting a…

A: Using Doppler effect, the frequency heard by the diver can be given as

Q: Ralph's ear canal is 2.67 cm long. If it is regarded as a tube that is open at one end and closed at…

A: Given, Length, L=2.67 cm=0.0267 m, and the speed of sound, v= 345 m/s.

Q: A 760- Hz sound travels through pure neon. The wavelength of the sound is measured to be 0.57 m.…

A:

Q: Sounds travels at 1540 m/s in body tissue. If an ultrasound device sends out a frequency of 10 MHz…

A: Given data: Sound speed (v) = 1540 m/s Frequency (f) = 10,000,000 Hz Required: The wavelength (λ)

Q: Calculate the wavelengths of sounds at the extremes of the audible range, 20 and 20,000 Hz, in 30.0C…

A: speed of sound, v = 343 m/s  f =20 Hz  f'= 20000 Hz

Q: 12. What would be the intensity of a sound wave produced by a 150 Watt speaker from a distance of…

A: Given :     Power, P = 150 W    distance, r = 8.5 m

Q: What is the loudness in Decibels from a 425 Watt siren at a distance of 7 meters away? (write an…

A: Power = 425 W Distance = 7 m Intensity of sound I=PA=4257=60.714Wm2

Q: Meatloaf (google/youtube him if you’re too young to know the reference) plays an F on his guitar as…

A: frequency (F) emitted by the guitar = 349.23 Hz speed of motorcycle (v) = 100 mph

Q: A car traveling due North at a4.1 m/s. A bicycist benind the car is traveling at 18.3 mis in the…

A: Given Speed of the car is vs=24.1 m/s Speed of the bicyclist is vo=18.3 m/s Frequency of the source…

Q: 7. A bat makes a squeak of frequency 8 kHz. (Convert from kHz to Hz.) If the sound travels at 343…

A: Here, 8kHz=8kHz×103Hz1kHz=8000 Hz

Q: 16

A: Given: Power, P= 288 Watts Distance, r=69.7 m   To find sound level at r=69.7 m in dB.

Q: 9. Sound intensity level, which measures the loudness of a sound perceived by human ear is measured…

A: Introduction: The intensity of sound is the power carried by the sound wave per unit area in a…

Q: 46) A point source emits sound with a power output of 100 W. What is the sound level (in dB) at a…

A:

Q: A student under wäter rocks together and makes a sound with a frequency of 639.0 Hz and a wavelength…

A: Given: frequency  f=639.0 Hzwavelength λ =2.4 m

Q: How far does light travel in one year? [This distance is known as a light-year (ly) and is used in…

A: When talking about the distances on the universal scale the distance cannot be calculated in meters…

Q: Fighter jets are supersonic aircrafts that are able to break sound barrier and produce a…

A: A sonic boom is produced by a sound emitting object when it travels at or greater than the speed of…

Q: Mac and Tosh stand 8 meters apart and demonstrate the motion of a transverse wave on a snakey. The…

A: It is given that,

Q: Write a question, including a sketch, that calculates how many watts of power hits your eardrums…

A:

Q: A sound wave with frequency 50 Hz moves at a speed of around 350 m/s in air. It travels into a wall,…

A: Required : Frequency of the sound in the wall.

Q: A 460-Hz sound travels through pure neon. The wavelength of the sound is measured to be 0.95 m.…

A: We know that If a wave have frequency f and wavelength

Q: A wave on a certain guitar string travels at a speed of 200m/s. Calculate the wavelength of an “A”…

A: Wave speed (v) is equal to the product of its frequency (f) and wavelength (λ) .  Mathematically ,…

Q: The huge volcanic eruption on the island of Krakatoa, Indonesia, in 1883 was heard on Rodrigues…

A:

Q: Elephants can communicate over distances as far as 6 km by using very low-frequency sound waves.…

A:

Q: Blue whales communicate with each other using a sound frequency of 18 Hz, which can be heard nearly…

A: Given that Frequency f = 18 Hz Distance d = 1000 km Speed of sound wave V = 1530 m/s

Q: Sound travels at an estimated speed of 344 * m/s c a sound wave has a frequency of 2500 HzWhat is…

A: Speed of sound (v) = 344 msFrequency (f) = 2500 Hz

Q: 9) It is a hot summer day. The temperature is 35 °∁ . A car is traveling at 18.846 km/hour honking…

A:

Q: You hear a noise with an intensity of 2.9 × 10-6 Watts/m2. Calculate the intensity in decibels. Use…

A: Given , Intensity of noise (I) = 2.9 x 10-6 Watts/m2 We want to calculate intensity in desibels

Q: Dolphins make sounds in air and water. What is the ratio of the wavelength of a sound in air to its…

A: The speed of sound of in air is

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.