Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
ie, tethering the previously floating ball to the floor does not
affect the scale reading.
The other nice question to add to this soln is:
Say the right-hand beaker has no steel ball in it but has water up to
the same level as the left-hand beaker. Then what?
Answer: The beam balances.
In other words, the weight of a beaker full to level L is the same as
a beaker that has a ping-pong ball floating on its surface, if it is
filled to level L at its edges.
ie. beakers |------| and |--/\--| both have the same weight
| | | \/ |
| | | |
-------- --------
--
Carl E Mungan, Assoc Prof of Physics 410-293-6680 (O) -3729 (F)
Naval Academy Stop 9c, 572C Holloway Rd, Annapolis MD 21402-1363
mailto:mungan@usna.edu http://usna.edu/Users/physics/mungan/
_______________________________________________
Forum for Physics Educators
Phys-l@phys-l.org
http://www.phys-l.org/mailman/listinfo/phys-l