Posted by Aaron on Wednesday, December 5, 2012 at 8:43pm.
A wave on a string is described by the relation y = A sin(30t  0.041x), where t is measured in seconds and x in meters, with A = 0.16 m.
(a)Find the frequency of the wave. ____Hz
(b)Find the wavelength of the wave. ___m
(c)Find the speed of the wave. ___m/s

PHYSICS  Jennifer, Friday, December 7, 2012 at 5:11pm
y = A sin(30t  0.041x)
y = Asin(0.041x  30t)
this is of the form y = A*sin(k*x  omega*t)
k = 0.041
omega = 30
where omega = 2*pi*f; 30 = 2*pi*f; where f is frequency; use this to solve for answer in a)
b) k = 2*pi / lambda, where lambda is wavelength;
c) the speed of the wave is omega/k = lambda*f
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