Barometer - basic

  • Thread starter stuc
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  • #1
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Homework Statement


borometer.jpg


Homework Equations


The given ans is 9600 as attached above, but i get 15 000.

The Attempt at a Solution

 
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Answers and Replies

  • #2
billy_joule
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Homework Equations


The given ans is 9600 as attached above, but i get 15 000.

The Attempt at a Solution


Show your attempt so we can see where you went wrong.
 
  • #3
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Show your attempt so we can see where you went wrong.
Snapshot.jpg
 
  • #4
DrClaude
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Lets approach this from a physical point of view. What should be equal in both cases, and how does that relate to the density?
 
  • #5
andrevdh
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Why do the liquid go up into the tube?
 
  • #6
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Pressure acting on both liquids is the same
 
  • #7
andrevdh
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Can you relate the pressure to the height of the column of liquid in the tube?
 
  • #8
andrevdh
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Then construct the equation pX = pY for the two liquid columns, that is the two columns are created by the same pressure.
 
  • #9
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Boyle Law>???
 
  • #10
DrClaude
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Boyle Law>???
It has nothing to do with Boyle's law. It is actually a simple problem of statics.

andrevdh almost gave you the answer in his replies.
 
  • #11
SteamKing
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How do you apply Boyle's Law to a vacuum? :wink:
 
  • #12
andrevdh
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Just try the calculation again stuc and show us your results.
 

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