[填空题]
A potter’s wheel is rotating aro.l .s0 xv,3v dmuk7stdj,aqd+uz7:-),qqz df5 niuw mjnd a vertical axis through its center at a frequency f, qw5d- u7j:znzmiq) 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 of the rotating wheel. What is the frequency of the wheel after the clay sticks to it? $rev/s$