A sound wave with intensity 2 x 10 -3 W/m2 is perceived to be modestly loud. Your eardrum is 6 mm in diameter. How much energy will be transferred to your eardrum while listening to this sound for 1 minute?

A sound wave at 20° C has pressure amplitude of 2.00 Pa. The density of air is 1.2 Kg/m and the threshold for hearing intensity is 1012 w/m2. The speed of sound in air is 344 m/s. (a) Find the intensity of the sound wave. (b) Find the intensity in decibels.

A 57-dB sound wave strikes an eardrum whose area is 5.0×10−5m^2. The intensity of the reference level required to determine the sound level is 1.0×10−12W/m^2. 1yr=3.156×107s How much energy is absorbed by the eardrum per second? At this rate, how long would it take the eardrum to receive a total energy of 1.0 J?

Because the human ear is so sensitive to sounds, it can detect very small intensities.  The lower intensity that a human can hear (which is represented with the symbol I0 ) is about 1x10-12 W/m2. However, a loud music venue may have sounds that are near 1.0 W/m2 (though sound as this intensity would cause permanent damage to your ears).  Because the human ear can detect frequencies over such a large range of intensities, more often a sound intensity level is used.  This level is defined as: β=10⋅log10II0   and the unit is dB which stands for deci-bels (or just decibels).  If a person speaks with an intensity of 0.701 μ W/m2, what is the sound intensity level in decibels?  Note: In the space below, please enter you numerical answer.  Do not enter any units.  If you enter units, your answer will be marked as incorrect.