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Transpositions help

  1. Apr 19, 2008 #1
    Hello there. Can someone help me understand the following practical physics transpositions. I would like every last detail to be mentioned as i'm not really very sure on this at all.

    A submarine has a maximum allowable pressure of 588.6kPa. It is in water at its usual density of 1000kg/m^3 what is the maximum depth this sub can achieve

    Well to find out the pressure i need to do Height times Gravitational Pull times Rho.

    How do i transpose this so that the height is the subject.

    can you answer this with a detailed explanation and give me a few other transpositions with multiplications and divisions with explanations as io need to understand this as im training to become an aircraft engineer.
  2. jcsd
  3. Apr 19, 2008 #2
    what do you mean by transposition? to transpose something means to take it from one place and put it into another.
  4. Apr 19, 2008 #3


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    Welcome to PF!

    Hello silk101! Welcome to PF! :smile:

    If h*g*rho = pressure, then you "transpose" by dividing both sides by g*rho, giving:

    h = pressure/g*rho :smile:
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