A 0.250 kg ball on the end of a 1.50m string is whirled in a vertical circle at a uniform rate 60.0 revolutions per minute. What is the tension in the string when the ball is (a) at the top, (b) at the bottom, (c) at a position that makes 60° with the vertical?

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A 0.250 kg ball on the end of a 1.50m string is whirled in a vertical circle at a uniform rate 60.0 revolutions per minute. What is the tension in the string when the ball is (a) at the top, (b) at the bottom, (c) at a position that makes 60° with the vertical?

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