A spherical steel ball bearing has a diameter of 2.54 cm at, Ask an Expert

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Q. A 300g block on a 60 cm-long string swings in a circle on a horizontal, frictionless table at 70rpm. what is the speed of the block?

Q. A spherical steel ball bearing has a diameter of 2.54 cm at 22 degrees. what is the diameter when its termperature is raised at 88 degrees celcuis?

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