1. (1 point) What is the intensity of sound waves produced by a trumpet at a distance of 3.1 m when the power output of the trumpet is 0.42 W? 2. (1 point) 9 If the intensity of a sound is 5.2 10-4 W/m at a distance of 7.3 m, what is the power of the sound? 3. (1 point) 10 The noise of a certain lawn mower has a power of 0.26 W. At what distance will the intensity of the lawn mower's sound be 7.2 10' W/m 2 11