The amplitude, or loudness, of a certain sound waves in a recording studio can be measured by the equation l(i)= 10log i/i sub0, where l(i) is measured in decibels, isub0 is the intensity of a barely audible sound (about 10^-12 watts per square meter), and i is the actual intensity. if a sound’s loudness increases by 10 decibels, by how many times is the sounds intensity multiplied?times