1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Hydrostatics- rearranging formula

  1. Aug 22, 2012 #1
    1. The problem statement, all variables and given/known data

    Derive an equation for the pressure difference p – B in terms of ρM, ρ, L, θ, a, A
    and the acceleration due to gravity g

    2. Relevant equations

    (LHS p')= B+(ρm)g(Lsinθ+h+Δ) = (RHS p') P+ρg(Lsinθ+H)

    Δ=delta = La/A

    a= area of tube, A= area of reservoir

    h= ρH/ρm

    3. The attempt at a solution

    P-B= ρmg(Lsinθ+(ρH/ρm)+(La/A)) - ρg(Lsinθ+H)

    = (ρm-ρ)g(Lsinθ)+ (Lsinθ+(ρ/ρm)+(La/A)

    I was just wondering if this is the correct formula for P-B
  2. jcsd
  3. Aug 22, 2012 #2
    A sketch or more of a description of the problem would be helpful here.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook