Pressure Question

  • Thread starter jefgreen
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  • #1
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Homework Statement


A test tube standing vertically in a test-tube rack contains 2.5cm of oil (Density=0.81 g/cm^3) and 6.5cm of water. What is the pressure on the bottom of the test tube?


Homework Equations


P=F/A

P=Dhg where d=density, h=heigh, and g=gravity.


The Attempt at a Solution



P=(0.81)(9cm {2.5cm+6.5cm})(9.80)

P=71.442 Pa


Is this correct?
 

Answers and Replies

  • #2
78
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bump.
 
  • #3
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bump again.
 
  • #4
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bump bump
 

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