Sound of 6.0 x 10^-3 W is produced by a loudspeaker which has a surface area of 0.3m^2. The loudspeaker transfers 80% of its acoustic energy to the front. Assume that the sound dissipates equally in al directions towards the front. Calculate the intensity right in front of the loudspeaker.
MUST WE ACTUALLY USE TAKE 80% OF THE POWER PRODUCED INSTEAD OF TAKING 6.0 x 10^-3W????
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yes, because question says 80% to the front, and asks you to calculate intensity at the front.