Q1) Calculate the period and frequency of an oscillation that has an angular frequency of 26 rads-1.

Q2) A cosinusoidal oscillation has a maximum amplitude of 3 and an angular frequency of 3 rads-1. What is the amplitude at a time of 20 s?

Q3) A harmonic wave B has a phase difference of -3π/2 with respect to a harmonic wave A. Sketch and label the two waves.

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