Recent contributions:

27 Jan 2011

• Made a modification to the discussion of: Does gravity pull things down 32.2 feet per second
  27 Jan 2011 00:32

2 Dec 2010

• Asked What is 7times 5
  2 Dec 2010 22:57

20 Oct 2010

• Made this change to the answer of What is three fourths as a percent
  Math and Arithmetic  •  20 Oct 2010 22:39

13 Oct 2010

• Made this change to the answer of Does gravity pull things down 32.2 feet per second
  Physics  •  13 Oct 2010 03:11