Afigure skater with a moment of inertia of 8.30 kg m2 spins with an angular velocity of 2.30 rad/s. she then pulls her ams in close to her body so that her moment of inertia reduces to 5.13 kg m2, what is her new angular velocity? a. 3.66 rad/s b. 1.42 rad/s c. 3.72 rad/s d. 13.4 rad/s 34. an elastic band with a spring constant of 21.9 n/m is 12.3 cm long at equilibrium. you stretch the elastic so that its total length is now 17.1 cm. how much elastic potential energy is stored in the spring? a. 252 j b. 0.324 c. 1660 j d. 0.0252 j 35. a cord passing through a frictionless, massless pulley has a 2.25 kg block tied to one end to the left of the pulley and a 6.33 kg block tied to the other end on the right of the pulley. assuming that the blocks started at rest what would their speed be after 1.50 s? a. 24.0 m/s b. 6.99 m/s c. 4.53 m/s d. 9.47 m/s