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Q. A horse races once around a circular track in a time of 18.0 s, with a speed of 18.0 m/s. What is the radius of the track? Give your answer in meters, but do not include units.

Q. A 85.0-kg person stands on a scale in an elevator. What is the apparent weight in each of the following situations? When the elevator is accelerating upward with an acceleration of 1.90 m/s2

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