Homework Help: Physics

Posted by Dan on Monday, December 6, 2010 at 9:48pm.

The displacement from the equilibrium caused by a wave on a string is given by: y(x,t) = (-0.00200 m)sin[(40m^-1)x-(800s^-1)t]. What is the number of waves in 1 m?

Physics - Damon, Monday, December 6, 2010 at 10:02pm
when is 40 x = 2 pi (full wavelength) ??
when x = pi/20 meters
that is the wave length

How many wave lengths in 1 meter ?
20/pi

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