1. The problem statement, all variables and given/known data When playing fortissimo (very loudly), a trumpet emits sound energy at a rate of 0.800 W out of a bell (opening) of diameter 12.7 cm. (a) What is the sound intensity level right in front of the trumpet? (b) If the trumpet radiates sound waves uniformly in all directions, what is the sound intensity level at a distance of 10.0 m? 3. The attempt at a solution My only question for the following question has to do with area. I know that I = P / A.. However, for a), since it is at the very end of the trumpet, would the area be pi*r^2, rather than the area for a sphere? I know that for b) it is the area of a sphere, but I was thinking for a) it would be a circle. Apparently this question is supposed to be hard, so that's why I was thinking that. Thanks!