1. The problem statement, all variables and given/known data The intensity of a certain spherical wave is 8.0 W/m^2 at a distance of 1.0 m from the source. If the medium is isotropic and nonabsorbing, calculate the decibel intensity 100m from the source. 2. Relevant equations β=10ln(I1/I0) 3. The attempt at a solution I know how to use these equations... And to find the original dB level i use β=(10dB)ln(8.0/10^-12) Im just not sure what to do to find intensity 100m away?