In the diagram below, the blue curve refers to a sinusoidal wave on a string at time t₁ = 0 that is propagating to the r

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In The Diagram Below The Blue Curve Refers To A Sinusoidal Wave On A String At Time T 0 That Is Propagating To The R 1 (90.26 KiB) Viewed 36 times

In the diagram below, the blue curve refers to a sinusoidal wave on a string at time t₁ = 0 that is propagating to the right. The red curve represents the same wave at a later time t₂ = 0.45 s, before the wave has traveled one full wavelength. y (cm) 10 ▬▬ 5 -5 W = -10 80 x (cm) (a) Which of the following wave functions correctly represents the above situation? Here A represents the amplitude, k the wave number, and the angular frequency of the wave. O y(x, t) = A sin(kx - wt) O y(x, t) = A sin(kx + wt) Ⓒy(x, t) = A cos(kx - wt) O y(x, t) = A cos(kx + wt) (b) What is the speed of the wave? 6.7 x How far has the wave traveled in the time interval t₂-t₁? How can you determine the speed from this information? cm/s (c) What are the amplitude, wave number, and angular frequency of the wave? A = 9 ✔ cm 0.24 x k = What is the wavelength of the wave from the graph? How is the wavelength related to the wave number? cm-¹ 1.0656 How is the angular frequency related to the wave number and wave speed? rad/s