A person standing 1.00 m from a portable speaker hears its sound at an intensity of 7.50 ×10-3 W
A person standing 1.00 m from a portable speaker hears its sound at an intensity of 7.50 ×10-3 W/m².
(a) Find the corresponding decibel level.
(b) Find the sound intensity at a distance of 35.0 m, assuming the sound propagates as a spherical wave.
(c) Find the decibel level at a distance of 35.0 m.
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