As shown in the diagram, a steel wire is used to stretch a spring by applying an external force F. When the spring is stretched by 8.5 cm, the wire is wiggled and a standing wave with three anti-nodes (points of maximum oscillation) is set up. a) If the external force F is 20 N, the wire length is 32.0 cm, and the frequency is 65 Hz, what is the mass of the wire? b) What stretch of the spring (for the same frequency of oscillation of the wire) will produce a pattern with only two antinodes in the wire?

University Physics Volume 3
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ISBN:9781938168185
Author:William Moebs, Jeff Sanny
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Chapter9: Condensed Matter Physics
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As shown in the diagram, a steel wire is used to stretch a spring by applying an external force F. When the spring is stretched by 8.5 cm, the wire is wiggled and a standing wave with three anti-nodes (points of maximum oscillation) is set up.

a) If the external force F is 20 N, the wire length is 32.0 cm, and the frequency is 65 Hz, what is the mass of the wire?

b) What stretch of the spring (for the same frequency of oscillation of the wire) will produce a pattern with only two antinodes in the wire?
 
 
 
пик
antinode
wire
Transcribed Image Text:пик antinode wire
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