Answer Happy

1) 30 points 20 points Two speakers, vibrating with identical frequency and in phase, are placed 5.00 m apart as shown in the picture. The speed of sound in this room is 344 m/s. You start at location A, where you hear a very loud sound. You then walk to the right. When you reach location B, which is 4.50 m directly above speaker 2 (as in the diagram), you hear, for the first time, a minimum (ideally 0) intensity sound. Solve for the frequency of the speakers. Explain and/or show your work! aker 1 A 5.00 m B Speaker 2 4.50 m
b) 10 points A musician blows into one end of a pipe producing a note that is recorded and analyzed by computer software. The analysis of the sound produces the graph to the right, which shows the intensity of all harmonic frequencies recorded when the note was played on the instrument. Is the sound produced by a pipe that is open on both ends, or open on one end and closed on the other? Explain your answer. h Intensity 100 200 300 400 Frequency (Hz)