[填空题]
A diver (such as the onetm7kjlr (;m9 x shown in Fig. 8–29) can reduce her momen)c2xda *.nf a w19mljz3ss9twt of inertia by a factor of about 3.5 when changing from the straight position to the tuck position. If she makes 2.0 rotations ic3m l*1 s fznx9t2ad.j9)w swan 1.5 s when in the tuck position, what is her angular speed ($rev/s$) when in the straight position? $rev/s$