1. two loudspeakers are placed 4.5 m apart. they produce the same sounds, in step, at a frequency of 829 hz. constructive interference is observed at point p, which is 5.30 m from one loudspeaker and a distance x from the other. which is a possible value of x? assume the speed of sound is 340 m/ a.6.60 b. 6.77 c. 6.80 d. 6.88 e. 6.53 2. two loudspeakers are placed 6.0 m apart. they produce the same sounds, in step, across a frequency range of 252 hz to 665 hz. point p is located 5.10 m from one loudspeaker and 3.60 m from the other. what frequency of sound from the two speakers will produce constructive interference at point p? assume the speed of sound is 344 m/s. a. 631 b. 401 c. 459 d. 573 c. 516