5. [011 Points] DETAILS PREVIOUS ANSWERS g SERCP11 7.3.P.D16. MY NOTES ASK YOUR TEACHER PR It has been suggested that rotating cylinders about 19.0 mi long and 3.53 mi in diameter be placed in space and used as colonies. What angular speed must such a cylin: centripetal acceleration at its surface equals the free-fall acceleration on Earth? 0.003454 x Your response differs signicantly from the correct answer. Rework your solution from the beginning and check each step carefully. rad/s Need Help? Submit/Answer 6. [0.511 Points] DETAILS PREVIOUS ANSWERS SERCP11 7.4.P.022.MI. MY NOTES ASK YOUR TEACHER PR A 35.0-kg child swings in a swing supported by two chains, each 3.08 m long. The tension in each chain at the lowest point is 430 N. (a) Find the child's speed at the lowest point. v m (b) Find the force exerted by the seat on the child at the lowest point. (Ignore the mass of the seat.) 821.6965 x Your incorrect answer may have resulted from roundoff error. Make sure you keep extra significant gures in intermediate steps of your calculation. N (upward) Need Help? @