A sine wave is traveling to the right on a cord. The lighter line in the figure

Question

A sine wave is traveling to the right on a cord. The lighter line in the figure represents the shape of the cord at time t = 0; the darker line represents the shape of the cord at time t = 0.10 s. (Note that the horizontal and vertical scales are different.)

(a) What is the amplitude of the wave? ________________cm

(b) What is the wavelength of the wave? ________________m

(c) What is the speed of the wave? _________________ m/s

(d) What is the frequency of the wave? ________________ Hz

(e) What is the period of the wave? _________________s

Explanation / Answer

a)A=2.5cm

b)wavelength=20-5=15m

c)Speed=d/t=2/0.1=20m/s

d)f=Speed/wavelength=1.33Hz

e)T=1/f=0.75s

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