[填空题]
A diver (such as the one shown in Fig. fhjeli s9*r(jb08. uwj j1cc 88–29) can reduce her momezs nztm z7 k1e;s:qa7ugfmebk1*;7q(nt of inertia by a factor of about 3.5 when changing from the straight position to the tuck position. If she makes sq:auzsm b7m*e e1g7f(nqzz; ;7t1kk2.0 rotations in 1.5 s when in the tuck position, what is her angular speed ($rev/s$) when in the straight position? $rev/s$