A portable audio speaker has a power output of 8.00 W. (a) If the speaker emits sound equally in all directions, what is the sound intensity at a distance of 2.00 m from the speaker? (b) At what distance from the speaker is the intensity equal to 0.045 W/m2?

A portable audio speaker has a power output of 8.00 W. (a) If the speaker emits sound equally in all directions, what is the sound intensity at a distance of 2.00 m from the speaker? (b) At what distance from the speaker is the intensity equal to 0.045 W/m2?

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Question

A portable audio speaker has a power output of 8.00 W.
(a) If the speaker emits sound equally in all directions, what is the sound
intensity at a distance of 2.00 m from the speaker? (b) At what distance
from the speaker is the intensity equal to 0.045 W/m2?

Expert Solution