[填空题]
A diver (such as the one shown in ljer1 fqw(- k;tu+sa) Fig.y6, 5zeta1wzb-tp ;r f8os8xq 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 rotatibq5 rx- opyz ta1 8wf,;tez8s6ons in 1.5 s when in the tuck position, what is her angular speed ($rev/s$) when in the straight position? $rev/s$