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Calculate the pressure experienced by the sensor ?

  1. Mar 25, 2012 #1
    1. The problem statement, all variables and given/known data
    A sensor is at rest in a fuel tank , it is at a depth of 0.34m
    and the fuel has a specific gravity of 0.7 .
    Calculate the pressure experienced by the sensor ?


    2. Relevant equations
    I guess Pressure = force/area


    3. The attempt at a solution
    I considered gravity as the force
    And depth as the area
    to apply it on the stated equation
    Using some site calculater
    Result was = 2.0588235294118 newton/meter^2
     
  2. jcsd
  3. Mar 25, 2012 #2
    After some revision , I think it's 0.34x0.7x9.81 = p ?
     
  4. Mar 25, 2012 #3
    Actually it's after asking a friend
     
  5. Mar 25, 2012 #4
    I'm totally clueless what is the logic behind this and what is the correct method to solve
     
  6. Mar 25, 2012 #5
    Ok , Thanks I found the answer
    Equation :
    Used with liquid columns of constant density or at a depth within a substance (example: pressure at 20 km depth in the Earth).
    p = Height x density x gravity
    where:
    P is Pressure
    g is gravity at the surface of overlaying material
    ρ is density of liquid or overlaying material
    h is height of liquid or depth within a substance
    ....
    Got it
     
  7. Mar 25, 2012 #6
    I feel that this thread is pointless is it possible to delete it . \ :
     
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