write the equation for the speed of a wave

Question

anonymous · Answer

please i need help

anonymous · Answer

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anonymous · Answer

??

fretje · Answer

One dimensional propagation:

transversal waves:
$$v _{t}=\sqrt{\left( F \div \mu \right)}$$
Where vt is the speed, and F the centripetal force, and µ the mass per length unit.

longitudinal waves (in a thin solid bar):
$$v _{l}=\sqrt{\left( E \div \rho\right)}$$
Where Rho is density (kg/m³) and E is material dependent:
for liquids E = K (compressionmodulus)
for solids E = G (shear modulus)

fretje · Answer

Sorry: the first formula is applicable on the wave propagation in a rope and the force F is the Force with which one pulls on the rope.  The higher this force, the faster the wave will travel.(Fis not the centripetal force (the centripetal force Fv = F*dl/r).

anonymous · Answer

how do i write this in the worksheet - word???

fretje · Answer

I found the question so general and vague.  There is no such thing as the equation for speed of a wave.

fretje · Answer

You have to know first what you are looking at.  Is it a light wave, a rope that waves, a sound wave in air, a longitudinal wave in a metal bar...