1. A transverse wave on a string is described by y(x, t) = (0.360 mm) sin {(1.347 rad/m)[x ? (64.5 m/s)t]}.

Find the wavelength.

_____________ m

2. A transverse wave on a string is described by y(x, t) = (0.360 mm) sin {(1.347 rad/m)[x ? (64.5 m/s)t]}.

In what direction does the wave travel?

a. -y-direction

b. +y-direction

c. +x-direction

d. -x-direction

3.

A sine wave is traveling to the right on a cord. The lighter line in the figure represents the shape of the cord at timet= 0; the darker line represents the shape of the cord at timet= 0.100 s. (Note that the horizontal and vertical scales are different.)

y (cm) f = 0.100 s 2 x (m) ON LO O 5 10 15 20 25 30 35