1. The problem statement, all variables and given/known data A small source emits sound waves with a power output 80W. a) find the intensity at a point 3.0m from the source. (0.71W/m) b) find the intensity level at the same point as part a.(118.51) c) at what distance would the intensity be one-fourth as much as of that part (a). i have no problem finding the answer for a and b, but i did have a bit of problem in c. i have tried to answer it which i get r=7.173, but i dont know is it right or wrong. help me for C. 2. Relevant equationsc B=10log(I/Io) Ia=P/4pie r^2 3. The attempt at a solution I=p/4pie R^2 i get 7.173 after calculate it.