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A. Consider the wave, ? = 0.6 cos(300? − 200? − 2) where y is measured...

A. Consider the wave, ? = 0.6 cos(300? − 200? − 2) where y is measured in centimeters, x is measured in meters, and t is measured in seconds.

Determine: the wave-vector, k, the frequency, ω, in radians per second, and the speed of the wave.

B. A guitar has a scale length of 25.5 inches. When properly tuned the ‘D’ string vibrates at 146.83 Hz. A particular ‘D’ string has a mass per unit length of 1.62 × 10−3 ??/?.

Determine: the wavelength of the first harmonic, the speed of waves on this string, and the tension in the string.

1 inch = 2.54 cm

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