Question: On a marimba (Fig P18.57), the wooden bar that sounds a tone when struck vibrates in a transverse standing wave having three antinodes and two

On a marimba (Fig P18.57), the wooden bar that sounds a tone when struck vibrates in a transverse standing wave having three antinodes and two nodes. The lowest frequency note is 87.0 Hz, produced by a bar 40.0 cm long. (a) Find the speed of transverse waves on the bar.
(b) A resonant pipe suspended vertically below the center of the bar enhances the loudness of the emitted sound. If the pipe is open at the top end only and the speed of sound in air is 340 m/s, what is the length of the pipe required to resonate with the bar in part (a)?

On a marimba (Fig P18.57), the wooden

Figure P18.57 Maba plaers in Mexko City

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