*84. Go A wireless transmitting microphone is mounted on a small plat-form that can roll down an incline, dircetly away from a loudspeaker thatis mounted at the top of the incline. The loudspeaker broadcasts a tonethat has a fixed frequency of 1.000 x 10ʻ Hz, and the speed of sound is343 m/s. At a time of 1.5 s following the release of the platform, the mi-crophone detects a frequency of 9939 Hz. At a time of 3.5 s following therelease of the platform, the microphoñe detects a frequency of 9857 Hz.What is the acceleration (assumed constant) of the platform?

Given: The frequency of the source fs = 104 Hz. The detected frequency after 1.5 s f1 = 9939 Hz.…

Answered: *84. Go A wireless transmitting…

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