A point source emits sound waves isotropically. The intensity of the waves At what distance R from the source, do sound waves have a sound level of 3.20 m from the source is 1.76 x 10- W/m?. Let us assume that the energy of the waves is conserved. 0 dB? The prefactor is: 5.63 3.48 2.37 O 1.54 4.25