Which statement best describes what happens when a sound source is moving? (1 point)

Grupo de opciones de respuesta

As the sound source approaches the observer, the pitch decreases and continues to do so as it passes the observer.

As the sound approaches the observer, the pitch increases; as it passes the observer, the pitch decreases.

As the sound source approaches the observer, the pitch decreases; as it passes the observer, the pitch increases.

As the sound source approaches the observer, the pitch increases and continues to do so as it passes the observer.

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.