Homework #10

• Find the center of mass of a half-cyllinder of radius R.  (Note: this comes in handy for the Extra Credit homework set #2.)
  
• 9-2
• 9-5
  
• Do 1-22 first, and then use it to prove
    .
• 11-1
• 11-2
• 11-6.  An alternative version of this problem involves two soda cans: one on the room temperature and one which is so cold that the soda is frozen solid.  The question is how to tell which one is which by observing the difference in their motion.  However, note that the behavior will be the reverse of 11-6.  Why?