An 8-hour exposure to a sound intensity level of 90.0 dB can cause hearing damage. How much energy, in joules, falls on a 0.925-cm-diameter eardrum when exposed to this sound volume for this period of time?

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12 gives the loudness of sound L (in dB) based on the intensity of sound I (in W/m²). The value I = 10 The formula L=10 log threshold for hearing for midfrequency sounds. Hearing impairment is often measured according to the minimal sound level (in dB) detected by an individual for sounds at various frequencies. For one frequency, the table depicts the level of hearing impairment. Category Mild Moderate Moderately severe Severe Profound Loudness (dB) 26≤L≤40 41≤L≤55 56≤L≤70 71 ≤L≤90 L>90 W/m is the minimal (a) If the minimum intensity heard by an individual is 9421.4 x 108 W/m², determine if the individual has a hearing impairment. Round to the nearest tenth. (b) If the minimum loudness of sound detected by an individual is 40 dB, determine the corresponding intensity of sound.

A child has an ear canal that is 1.3 cm long. At what sound frequencies in the audible range will the child have increased hearing sensitivity?

The relative intensity of the first harmonic of a sound is 70 dB (1000 Hz). The second harmonic of a sound has the amplitude of a pressure 5 times smaller than that for the first harmonic. What is loudness for the second harmonic if we hear this sound separately?

The lower frequency limit of hearing for a particular human being is 25.3 Hz. What is the corresponding wavelength (in meters) for this frequency if the speed of sound in air is 343m / s ?

An 6 hour exposure to a sound intensity level of 95.0 dB may cause hearing damage. What energy in joules falls on a 0.900 cm diameter eardrum so exposed?

A speaker designed to emit spherical sound waves is producing a sound intensity of 8 W/m2 at a distance of 1 m from the speaker. What would be the intensity of this sound at a distance of 2 m from the speaker?

An 6 hour exposure to a sound intensity level of 95.0 dB may cause hearing damage. What energy in joules falls on a 0.600 cm diameter eardrum so exposed?

What is the sound intensity level in dB produced by earphones that create an intensity of 8.5 x 10^-2 W/m^2?