Precalculus Quiz
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MODEL PERIODIC PHENOMENA
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A mass on a spring has position (from equilibrium) modeled by y(t)=4cos⁡(3t)y(t)=4\cos(3t) cm, where tt is in seconds and t≥0t\ge 0. Based on the model, what is the first time after t=0t=0 when the mass reaches y=2y=2 cm? (Answer in seconds; you may use an equation solver.)
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