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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