When playing fortissimo (very loudly), a trumpet emits sound energy at a rate of

0.840 W out of a bell (openin? When playing fortissimo (very loudly), a trumpet emits sound energy at a rate of 0.840 W out of a bell (opening) of diameter 13.1 cm.a)

What is the sound intensity level right in front of the trumpet?
? dB

(b) If the trumpet radiates sound waves uniformly in all directions, what is the sound intensity level at a distance of 10.0 m?
? dB