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Question 2 As a demonstration of uniform circular motion in class, I often swung my keys from a 46.0 cm string in a horizontal circle

Question 2 As a demonstration of uniform circular motion in class, I often swung my keys from a 46.0 cm string in a horizontal circle over my head. Suppose my keys have a mass of 225 g, and during their motion the string pointed down at a 11.0 angle (below the horizontal). What is the angular speed of the keys

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