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Mathematics 21 Online
OpenStudy (anonymous):

Please help! I've had to miss so much school and I'm so far behind. An objects motion is described by the equation d=3 cos ((pi)(t)). The displacement, d, is measured in meters. The time, t, is measured in seconds. What is the objects position at t=0? What is the maximum displacement from its resting position? How much time is required for one oscillation? What is the frequency?

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