A trumpet creates a sound intensity level of 1.28 102 dB at a distance of 0.90 m.
a) what is the sound intensity of a trumpet at this distance?
b) What is the sound intensity of five trumpets at this distance?
c) Discover the sound intensity of five trumpets at the location of the first row of an audience, 8.60 m away, assuming, for simplicity, the sound energy propagates uniformly in all directions.
d) Compute the decibel level of the five trumpets in the first row.
e) If the trumpets are being played in an outdoor auditorium, how far away, in theory, can their combined sound be heard?