Posted by Nancy on .
Find the number of decibels for the power of the sound. round to the nearest decibel. A rock concert, 5.35x 10^4 watts/cm^2

algebra 
Henry,
db = 10*Log5.35*10^4
db = 10*Log5.35 + Log10^4
db = 10*(0.7284 + 4) = 47 db.