[填空题]
A potter’s wheel is rotating around a vertical axis through its 0o.iunv)aufqf k: r*3c6r(5 + f/tkpkjkfhanw* yi9a (enter 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, approximately shaped as a flat disk of radius 8.0 cm, onto the center 596fw/*tk(jkf rk+pi( h nyaaof the rotating wheel. What is the frequency of the wheel after the clay sticks to it? $rev/s$