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(a) Write the expression for y as a function of x and t in SI units...

(a) Write the expression for y as a function of x and t in SI units for a sinusoidal wave traveling along a rope in the negative x direction with the following characteristics: A = 5.50 cm, λ = 90.0 cm, f = 6.00 Hz, and y(0, t) = 0 at t = 0. (Use the following as necessary: x and t.)
y =



(b) Write the expression for y as a function of x and t for the wave in part (a) assuming y(x, 0) = 0 at the point x = 39.0 cm. (Use the following as necessary: x and t.)

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