S4. A travelling wave in a string is described by x(y,t) 10-2 cos(7(y + 900t)) where x, y are measured in meters and t in seconds. (a) What is the wavelength and frequency of the wave? (b) What is the direction and speed of the wave? Indicate the direction by specifying the unit vector in the direction of wave travel. (c) Along which axis (x or y) do the particles in the string oscillate? What is the amplitude of oscillation of the particles in the string?
S4. A travelling wave in a string is described by x(y,t) 10-2 cos(7(y + 900t)) where x, y are measured in meters and t in seconds. (a) What is the wavelength and frequency of the wave? (b) What is the direction and speed of the wave? Indicate the direction by specifying the unit vector in the direction of wave travel. (c) Along which axis (x or y) do the particles in the string oscillate? What is the amplitude of oscillation of the particles in the string?
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Transcribed Image Text:S4. A travelling wave in a string is described by x(y, t) = 10-2 cos(7(y + 900t)) where x, y are
measured in meters and t in seconds.
(a) What is the wavelength and frequency of the wave?
(b) What is the direction and speed of the wave? Indicate the direction by specifying the unit
vector in the direction of wave travel.
(c) Along which axis (x or y) do the particles in the string oscillate? What is the amplitude of
oscillation of the particles in the string?
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