How Does Wave Propagation Time Relate to Cable Length and Gravity?

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SUMMARY

The wave propagation time for a vertically hanging cable is defined by the equation t = 2√(L/g), where L represents the cable length and g is the acceleration due to gravity. The tension in the cable, denoted as F, influences the wave speed, which is calculated using the formula v = √(F/μ), where μ is the linear mass density of the cable. Understanding these relationships is crucial for solving problems related to wave mechanics in physics.

PREREQUISITES
  • Understanding of wave mechanics and propagation
  • Familiarity with tension in cables and its effects
  • Knowledge of linear mass density (μ)
  • Basic grasp of gravitational acceleration (g)
NEXT STEPS
  • Study the derivation of wave speed in different mediums
  • Learn about the relationship between tension and wave propagation
  • Explore the effects of gravity on wave mechanics
  • Investigate practical applications of wave propagation in engineering
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Students studying physics, particularly those focusing on wave mechanics, as well as educators and professionals involved in engineering and materials science.

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Homework Statement


Show that the time it takes a wave to propagate up the cable (cable which hangs vertically under its own weight) is t = 2[tex]\sqrt{L/g}[/tex], where L is the cable length.


Homework Equations


i think... v=[tex]\sqrt{F/\mu}[/tex]



The Attempt at a Solution


i've been staring at this problem for about 2 hours now. can anyone just help me how to get started on this one??
 
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pcjang said:

Homework Equations


i think... v=[tex]\sqrt{F/\mu}[/tex]

Yes. And F is the tension in the cable.
 

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