A jar filled partially with water has an object floating in it. The jar is open. Now, if the jar is closed and a vacuum pump is used to pump the air out, what will happen to the floating object? will it rise up more or sink or ...? and why?

(In reply to A solution by Haruki)

Adding to this, all the heat from boiling would tranfer to the jar and eventually out into the enviroment

Posted by Haruki on 2005-09-09 03:10:41