[填空题]
A diver (such as the one shown in F goir-;f n zb9sm(7du;igq -1:mcjachr2 . 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 makes 2.0 rotations in 1.5 s wc j ha-2mrq:1chen in the tuck position, what is her angular speed ($rev/s$) when in the straight position? $rev/s$