Question: A wave on a string is described by (y(x,t)=( 4.0 cm )cos[2(x/( 3.6 m )+t/()+t/( 0.20 s ))] , where x is in m and

A wave on a string is described by

(y(x,t)=( 4.0 cm )cos[2(x/( 3.6 m )+t/()+t/( 0.20 s ))] , where x is in m and t is in s.

In what direction is this wave traveling? What is the wave speed? Express your answer in meters per second.

What is the wave frequency? Express your answer in hertz.

What is the wavelength? Express your answer in meters.

At t = 0.50 s , what is the displacement of the string at x = 0.30 mm ? Express your answer in centimeters.

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