Standing Waves 4. A wire of mass m = 2 kg is stretched between two walls a distance L= 10 m apart. It is set into oscillation. %3D (a) What is the wavelength of the first standing wave that can be excited? Sketch this standing wave. (b) What are the wavelengths of the second and third excited standing waves? Sketch them. (c) The string is under a tension of F,= 100 N. What are the frequencies of the first 3 standing waves? [Ans: 1.1 Hz; 2.2 Hz; 3.4 Hz] %3D A violin string vibrates (in its lowest mode) at 440 Hz when unfingered. At what -fourth of the way down from the end?

Standing Waves 4. A wire of mass m = 2 kg is stretched between two walls a distance L= 10 m apart. It is set into oscillation. %3D (a) What is the wavelength of the first standing wave that can be excited? Sketch this standing wave. (b) What are the wavelengths of the second and third excited standing waves? Sketch them. (c) The string is under a tension of F,= 100 N. What are the frequencies of the first 3 standing waves? [Ans: 1.1 Hz; 2.2 Hz; 3.4 Hz] %3D A violin string vibrates (in its lowest mode) at 440 Hz when unfingered. At what -fourth of the way down from the end?

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter16: Waves

Section: Chapter Questions

Problem 61P: A copper wire has a density of =8920 kg/m3, a radius of 1.20 mm, and a length L. The wire is held...

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