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Hydrostatics Problem Finding h

  • #1
3,003
2

Homework Statement



So this is a five part problem. I have already done the first 4 parts that involved the mess of different liquids to the left in the diagram.

I am only concerned with finding h now, which I believe does not even require me to look at the left hand side of the diagram.

I should be able to find it using only H1, H2, (SG)Hg, gammaL and patm

I also labeled a point a because I believe it will be of use to me.

Picture1-33.png



Homework Equations



The hydrostatic relation [itex]p=p_o+\rho g y=p_o+\gamma y[/itex]


Can someone give me a hint? I have done tons of these before, but I am stumped for some reason on this one :redface:

What is confusing is that i am given "heights" and not "depths." Not sure why that is effing me up so badly.
 
Last edited:

Answers and Replies

  • #2
rl.bhat
Homework Helper
4,433
5
Hg level in left tube = H1 - h
Hg level in right tube = H2
Find the excess mercury level in the right hand tube.
Excess pressure due to this level must be balanced by the excess pressure due to h level of liquid of density of γL.
 
  • #3
3,003
2
H2-(H1-h)γHg=hγL

That look about right rl.bhat ?
 
  • #4
rl.bhat
Homework Helper
4,433
5
H2-(H1-h)γHg=hγL

That look about right rl.bhat ?
It should be [H2-(H1-h)]γHg=hγL
 

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