Acousticsa.) By what factor is an 82.0 dB sound more intense than a 24.0 dB sound? What is theamplitude of each of these sounds in air? (Assume Pmax = 0.020 Pa, B = 1.42 x 105 Pa,and f = 1250 Hz.)b.) The intensity of sound is given byI1 =w² A²pB2where A is amplitude and p and B are the density and bulk modulus, respectively, of themedium. Suppose the density of the medium changes by 2.0%. By what percentagedoes the intensity change assuming oo, A, and B all remain fixed?c.) Driving down the highway at 35.0 m/s you pass an ambulance driving in the otherdirection whose siren is blaring. You happen to know that the frequency of the siren is550 Hz, and you hear a frequency of 675 Hz. What is the speed of the ambulance?(Assume the speed of sound is 340 m/s and that both you and the ambulance are movingat constant velocity.)

Sound level 1 SL1=82 dB=10 logI1I0Sound level 2 SL2=24 dB=10 logI2I0SL1-SL2=82dB-24dB=58…

6.) Acoustics a.) By what factor is an 82.0 dB sound more intense than a 24.0 dB sound? What is the amplitude of each of these sounds in air? (Assume Pmax = 0.020 Pa, B = 1.42 x 105 Pa, and f= 1250 Hz.) b.) The intensity of sound is given by I = w² A² √PB where A is amplitude and p and B are the density and bulk modulus, respectively, of the medium. Suppose the density of the medium changes by 2.0%. By what percentage does the intensity change assuming , A, and B all remain fixed? c.) Driving down the highway at 35.0 m/s you pass an ambulance driving in the other direction whose siren is blaring. You happen to know that the frequency of the siren is 550 Hz, and you hear a frequency of 675 Hz. What is the speed of the ambulance? (Assume the speed of sound is 340 m/s and that both you and the ambulance are moving at constant velocity.)

6.) Acoustics a.) By what factor is an 82.0 dB sound more intense than a 24.0 dB sound? What is the amplitude of each of these sounds in air? (Assume Pmax = 0.020 Pa, B = 1.42 x 105 Pa, and f= 1250 Hz.) b.) The intensity of sound is given by I = w² A² √PB where A is amplitude and p and B are the density and bulk modulus, respectively, of the medium. Suppose the density of the medium changes by 2.0%. By what percentage does the intensity change assuming , A, and B all remain fixed? c.) Driving down the highway at 35.0 m/s you pass an ambulance driving in the other direction whose siren is blaring. You happen to know that the frequency of the siren is 550 Hz, and you hear a frequency of 675 Hz. What is the speed of the ambulance? (Assume the speed of sound is 340 m/s and that both you and the ambulance are moving at constant velocity.)