A Wave Is Represented by the Equation Y(x, T) =

A wave is represented by the equation y(x, t) = 3.2 cm sin(1000 rad/s t − 50 m⁻¹ x) . Another wave, with the same wavelength and frequency, has an amplitude of 4.2 cm. If the two waves interfere constructively, then which equation could represent the superposition of the two waves?

A) y(x, t) = 7.4 cm sin(1000 rad/s t + 50.0 m⁻¹ x)
B) y(x, t) = 1.0 cm sin(1000 rad/s t − 50.0 m⁻¹ x)
C) y(x, t) = 1.0 cm sin(1000 rad/s t + 50.0 m⁻¹ x)
D) y(x, t) = 7.4 cm sin(1000 rad/s t − 50.0 m⁻¹ x)

Correct Answer:

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