The Displacement of a String Is Given by Y(x,t)= Y_msin(kx $\pi$

question 45

Multiple Choice

The displacement of a string is given by y(x,t) = y_msin(kx + t) .
The speed of the wave is:

• A)"2\(\pi\)k/ 0"
• B)" /k"
• C)" k"
• D)"2\(\pi\)/k"
• E)"k/2\(\pi\)"

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