[填空题]
A diver (such as the on d3j:xtmpts6 ( e4s7pig9dxcn5 h 2x w-, ndp/.wgi5dtma v4q1 ,qt.wne shown in Fig. 8–29) can reduce her moment of inertia by a factor of about 3.5 when changing from the straight position to the tuck position. If she dqang5 ,1.vpgd/4xxt t-2cw5 9 wqhmin.w,di makes 2.0 rotations in 1.5 s when in the tuck position, what is her angular speed ($rev/s$) when in the straight position? $rev/s$