The intensity of a sound is given by 1=1,10", where L is the loudness of the sound as measured in decibels and l, is the minimum intensity detectable by the human ear.
a) Find 1, in terms of l, for the loudness of a small engine, which is 90 decibels
b) Find 1, in terms of l, for the loudness of a quiet sound, which is 10 decibels
c) Compare your answers to parts (a) and (b) d) Find the rate of change did..
e) Interpret the meaning of did
