Physics, 23.04.2020 00:53, 001035783

A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency of 205 Hz. A person on the platform right next to the speaker detects the sound waves reflected off the wall and those emitted by the speaker. How fast should the platform move, vp , for the person to detect a beat frequency of 5.00 Hz?

Take the speed of sound to be 344 m/s.

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A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency o...