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A child is swinging a 330-g ball at the end of a 69.0-cm-long string in a...

A child is swinging a 330-g ball at the end of a 69.0-cm-long string in a vertical circle. The string can withstand a tension of 15.0 N before breaking.

(a) What is the tension in the string when the ball is at the top of the circle if its speed at that point is 3.50 m/s?
_________ N

(b) What is the maximum speed the ball can have at the bottom of the circle if the string does not break?
_________ m/s

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