Answer
The speed of the wave is $0.836~cm/s$
Work Step by Step
We can find the wavelength:
$\lambda = \frac{2\pi}{k}$
$\lambda = \frac{2\pi}{6.0~rad/cm}$
$\lambda = 1.05~cm$
We can find the frequency:
$f = \frac{\omega}{2\pi}$
$f = \frac{5.0~rad/s}{2\pi}$
$f = 0.796~Hz$
We can find the speed of the wave:
$v = \lambda~f$
$v = (1.05~cm)(0.796~Hz)$
$v = 0.836~cm/s$
The speed of the wave is $0.836~cm/s$
