Answered: A standing wave on a string with a…

A standing wave on a string with a length of 14.3m has 8 antinodes and is generated by a 120Hz oscillator. The amplitude is 22mm. Write the equation for this standing wave.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter17: Sound

Section: Chapter Questions

Problem 60P: A sound wave traveling in air has a pressure amplitude of 0.5 Pa. What is the intensity of the wave?

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Concept explainers

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.

Question

A standing wave on a string with a length of 14.3m has 8 antinodes and is generated by a 120Hz oscillator. The amplitude is 22mm. Write the equation for this standing wave.

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