A sound source emits sounds of frequency 190 hz that travel, Ask an Expert

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Q. A sound source emits sounds of frequency 190 Hz that travel by still air at 340 m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is the wavelength of the sound between source and listener?

Q. Two children ride on the merry-go-round shown in Conceptual Checkpoint 10-1 and the figure below. Child 1 is 2.0 m from the axis of rotation, and child 2 is 1.5 m from the axis. The merry-go-round completes one revolution every 4.9 s

Determine the angular speed of each child.

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