a)

$\overline{){\mathbf{v}}{\mathbf{=}}{\mathbf{f}}{\mathbf{\lambda}}}$

$\overline{){\mathbf{1}}{\mathbf{}}{\mathbf{H}}{\mathbf{z}}{\mathbf{=}}{\mathbf{1}}{{\mathbf{s}}}^{\mathbf{-}\mathbf{1}}}$

f = 5.0 Hz

λ = 2 m

The figure is a snapshot graph at t = 0s of a 5.0 Hz wave traveling to the left.

a) What is the wave speed?

b) What is the phase constant of the wave?

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