How much more intense than the threshold of hearing is a sound of 10 dB? 30 dB? 60 dB?

Q: e 30 m away is 100 dB. What is the sound intensity in W/m^

A: Given:- The distance d = 30 m  The level of sound of jet airplane  L = 100 dB  Find:-  The Sound…

Q: The area of a typical eardrum is about 5.0x10−5 m2. What is the sound power (energy per second)…

A: Given:Area of typical eardrum (a) = 5×10-5 m2.

Q: A wave of wavelength 0.60cm is produced in air and it travels at a speed of 300m/s. Will it be…

A: Given, wavelength = 0.006m            speed = 300 m/s

Q: The intensity of a sound level of 100 db is equal to knowing that the threshold of hearing is 10-12…

A: Given :     Sound level, β = 100 dB     Threshold of hearing, Io = 1×10-12 W m-2 Determine the…

Q: The smallest change in sound level that can be detected by a person with normal hearing is 1 dB.…

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Q: At close proximity, rustling leaves have a sound intensity of about 1.2×10-11 W per m2. At what…

A: Given:  I1 = 1.2 x 10-11 W/m2  I2 = 1 x 10-12 W/m2 r1 = 1 m

Q: If a woman needs an amplification of 7.0 × 104 times the threshold intensity to enable her to hear…

A: Given: A woman needs an amplification, (I) = 7×104 I0 Where I0 = reference intensity level (or…

Q: The intensity level of a sound coming from a certain TV is 80 dB, while from a vacuum cleaner is 85…

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Q: A sound with 10 times the amplitude of another sound has a sound level that is 20 decibels higher.…

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Q: The decibel level 3 m from a source of sound is 105 dB? What is the decibel level 9 m from the…

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Q: sound of intensity I = 10-6 W/m2 falls on a detector of area A = 7 x 10-5 m2. (This is about the…

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Q: At a distance of 4 m from a certain sound source, the sound level intensity is 70 dB. What is the…

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Q: The pain threshold of sound level is 120 db 160 db O 140 db

A: The pain threshold of sound level is at range between 120-140 dB. 120 dB is the sound of an airplane…

Q: A single mosquito 5.0 m from a person makes a sound close to the threshold of human hearing (0 dB).…

A: The intensity of sound for 0 dB is 1×10-12 W/m2. One mosquito makes a sound intensity of I1=1×10-12…

Q: Measured independently at the position of a receiver, two speakers are measured to have sound levels…

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Q: Approximately how many times louder is a  155-dB  sound than a  75-dB  sound? Hi, I am sorry it is…

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Q: Taking the threshold of hearing to be 1.00 × 10-1² w/m², determine the level of sound (in decibels)…

A: Given that, The threshold intensity of sound is, We need to find the level of sound that can be…

Q: A sound level of 0 dB corresponds to a sound intensity of 0 W/m2. True or False?

A: Sound waves are longitudinal waves. This implies that the direction of propagation of the sound wave…

Q: The sound level measured in a room by a person watching a movie on a home theater system varies from…

A: Given that: β1=45 dBβ2=75 dB It is required to determine the loudness of the latter sound. Now, we…

Q: A 2nd harmonic sound wave fills an empty glass jug 60 cm long. If it moves at 340 m/s, what is the…

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Q: The sound level measured in a room by a person watching a movie on a home theater system varies from…

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Q: reduce the of sound by 25%. How far bac must you sit in order to hear the

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Q: Ten oboes produce a sound intensity level of 50 dB in a concert hall. The number of oboes needed to…

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Q: The sound level measured in a room by a person watching a movie on a home theater system varies from…

A: Introduction: The loudness of the sound is measured in decibel, and it is directly proportional to…

Q: A trumpet creates a sound intensity level of 115 dB at a distance of 1.00 m. What is the sound…

A: sound level due to one trumpet = 115 dB using formula , β = 10 log (I/Io)115 = 10 log ( I/10-12)I =…

Q: What is the total sound level produced by the combination of an 80 dB sound and an 85 dB sound?

A: Sound level β in decibels is given by, β=10 logII0 where I is intensity of the sound and I0 is the…

Q: What is the intensity level in decibels of a sound with intensity 10-3 W/m2? The threshold of human…

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Q: The range of human hearing extends from approximately 20 Hz to 20 000 Hz. Find the wavelengths of…

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Q: What is the intensity (in W/m) of a sound that has a level 3.00 de lower than a 4.03 x 10-3 W/m²…

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Q: If one sound is 6 times as intense as another, it has a sound level about ____dB higher.?

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Q: A very loud train whistle has an acoustic power output of 100 W. If the sound energy spreads out…

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Q: One loudspeaker is generating 42 dB of sound intensity level. If another identical loudspeaker is…

A: One loudspeaker is generating 42 dB of sound intensity level. If another identical loudspeaker is…

Q: A 60 year old person has a threshold of hearing at f=10 kHz of 79.0 dB. In contrast, a typical young…

A: The decibel (dB) scale is logarithmic, and the relationship between intensity levels can be…

Q: The sound of 100 dB is …….. times as intense as the sound of 50 dB

A: The loudness of the sound is being measured in the form of dB and it has a clear relationship with…

Q: The sound level measured in a room by a person watching a movie on a home theater system varies from…

A: Given data The first sound level is given as dB1 = 45 dB. The second sound level is given as dB2 =…

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.