Period, T is given as:
T = 2π/ω, where ω is the angular frequency.
One formula for a wave with a y displacement (e.g., of a string) traveling in the x direction is
y(x,t) = A sin (kx - ωt).
The questions in this problem refer to this formula and to the wave it describes.
a) What is the period T of this wave?
b) What is the speed of propagation v of this wave?
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