After setting up stereo speakers in your schools music room, you notice that in certain areas of the room, the sound from the speakers is very loud. in other areas, the sound is very soft. using the concept of interference, explain why the sound levels in the music room vary.

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.

When solid surfaces slide over each other the kind of friction that occurs is called friction