A typical adult ear has a surface area of 2.1 × 10-³ m².The sound intensity during a normal conversation is about3.2 x 10-6 W/m² at the listener's ear. Assume that the sound strikes52.the surface of the ear perpendicularly. How much power is interceptedby the ear?

The given values are, A=2.1×10-3 m2I=3.2×10-6 W/m2

Answered: A typical adult ear has a surface area…

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Chapter1: Units, Trigonometry. And Vectors

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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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 2.443 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.
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A typical adult ear has a surface area of 2.1 × 10-³ m². The sound intensity during a normal conversation is about 3.2 x 10-6 W/m² at the listener's ear. Assume that the sound strikes 52. the surface of the ear perpendicularly. How much power is intercepted by the ear?