s] From a distance of ra = 8.000 m, a trumpet player plays an Anote, f1 = 440.0 Hz, with a sound intensity level of β1 = 58.00 dB.A tuba plays in unison with the trumpet, but is slightly out oftune and has f2 = 437.00 Hz, and its sound intensity level is β2 =63.50 dB. a) Calculate I1 and I2, the intensities of eachinstrument separately. b) When they play in unison, how manydecibels does their combined sound create? c) What beat frequencyis heard? d) If the distance to the instruments is increased to rb= 24.00 m, what are the sound intensity levels (in dB) of thetrumpet by itself, the tuba by itself, and the combinedinstruments?
