In a simplified roller bearing, the inner cylinder has a radius of 1.0 cm and is stationary. The outer hollow cylinder has a radius of 1.2 cm and is rotating at 8.0 rpm. Between the two cylinders are several small cylinders with a radius of 0.10 cm, which roll without slipping on both the inner and outer cylinders. (Only one of these cylinders is shown in the figure). What is the angular speed of the small cylinders, which is between two inner and outer cylinders?