[填空题]
A potter’s wheel is rotl 13l7uh0wgbc 5bc;hyhi/zogb u0:m ,ating around a vertical axis through its center at a frequency of 1.5rev/s The wheel can be considered a uniform disk of mass 5.0 kg and diameter 0.40 m. The potter then throws a 3.1-kg chunk of clay, approximz:i,mbog0u h/ately shaped as a flat disk of radius 8.0 cm, onto the center of the rotating wheel. What is the frequency of the wheel after the clay sticks to it? $rev/s$
