Pressure and force problem

[Luj]

Hey guys...
i'm new student in chemical engineering
and i want your help in a problem:

http://dc16.arabsh.com/i/03036/a79xeldzokge.png

at least give me the general idea and i would be greatful...

my regards...
Luj :)

 

[tiny-tim]

Welcome to PF!

Hi Luj! Welcome to PF!

(pleeeeeeeeeeeeeeeeeease don't post such wide pictures )

Hint: what are the forces involved?

What is the relation between force and pressure?

What is the relation between pressure and height? ​

 

[Luj]

Hey tiny tim :)
sorry i uploded a new pic :)

i actually got this:
P1 = P2
so F1/ A1 = F2 /A2
10000/500 = F/5 "but still can't complete!"

!?

 

[SteamKing]

First of all, you should realize that the applied force in Newtons can't be calculated directly without conversion, because the rest of the data is in imperial units. Make sure your equations use data having consistent units!

 

[tiny-tim]

Hey Luj!

(try using the X₂ icon just above the Reply box )

Don't forget the weight of the extra oil on the right-hand side!

 

[Luj]

ok guys, should i use the density (0.78) here and in which side??
please can anyone tell me the right form for this pb? :(

 

[SteamKing]

The oil has the same specific gravity throughout.