Question: A 200 g block on a 50-cm-long string swings in a circle on a horizontal, frictionless table at 75 rpm. a. What is the speed

A 200 g block on a 50-cm-long string swings in a circle on a horizontal, frictionless table at 75 rpm.
a. What is the speed of the block?
b. What is the tension in the string?

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