[20 pts] Two speakers emit identical sinusoidal waves. The speakers are placed 8.9 m apart. You are standing at position A and heard a loud pitch when the speakers are both playing a 600 Hz tone. You start walk towards position B, directly in front of speaker 1, along a line parallel to the two speakers. Then, you turn right and keep walking towards point C a distance of 11.2 m as shown in the figure. Take the speed of sound 348 m/s. Speaker 1 2.7 m B 11.2 m 4.5 m A Loud 8.9 m 5.95 m Speaker 2 A. [6 pts] Are the two speakers in phase or out of phase? B. [6 pts] Do you hear a loud or soft pitch at point C? C. [8 pts] Both speakers emit the same amount of output power. What is the output power for the speaker if the intensity sound level received at position B when both speakers are on is 102 dB? [Answer in 3 significant figures]