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Beaker with water on a weighing scale

  1. Jul 4, 2006 #1
    beaker with water on a weighing scale....

    A weighing scale has a beaker of water on one side and a balancing
    weight on the other side.

    You put your finger into the water carefully without touching the beaker. Will the balance be upset?

    Which side will appear heavier, if so?

    What will happen in instead of your finger you hold a wooden rod or a steel rod in the water, but without touching the beaker?
     
  2. jcsd
  3. Jul 4, 2006 #2

    Doc Al

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    Staff: Mentor

    What do you think? When you stick your finger in the water are you exerting a force on the water/beaker system? (Hint: Does the water exert a force on your finger?)
     
  4. Jul 6, 2006 #3
    I think it does....
     
  5. Jul 6, 2006 #4
    Displacement of the water :P ?
     
  6. Jul 6, 2006 #5

    Doc Al

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    Staff: Mentor

    Of course it does. Also note that when you stick your finger in the water, the water level rises.
     
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