Now we have a rod-shaped space station of length 617 m and mass 7.84 x 10^6 kg, which can change its length (kind of like an old-fashioned telescope), without changing its overall mass. Suppose that the station is initially rotating at a constant rate of 2.39 rpm. If the length of the rod is reduced to 351 m, what will be the new rotation rate of the space station? 5.91 rpm 11.09 rpm 4.73 rpm 7.39 rpm