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A CD has diameter of 130130millimeters. When playing audio, the angular speed varies to keep the linear speed constant where the disc is being read.

A CD has diameter of 130130millimeters. When playing audio, the angular speed varies to keep the linear speed constant where the disc is being read. When reading along the outer edge of the disc, the angular speed is about180180 RPM (revolutions per minute). Find the linear speed.

w = rad min ?

wheels make revaluation per min?

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