Past Physics Challenge Answers
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September 2009
• Solutions to September 2009 Problems
 

May 2009
• Solutions to May 2009 Problems
 

April 2009
• Solutions to April 2009 Problems
 

March 2009
• Solutions to March 2009 Problems
 

February 2009
• Solutions to February 2009 Problems
 

January 2009
• Solutions to January 2009 Problems