Calculating Fluid Density: P2-P1/gh

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To calculate the fluid density using the pressures at the top and bottom of a cubical box, the equation P2 - P1 = pgh is applied. The pressure difference is 2.56 kPa, and the height of the box is 0.2485 m. When using these values, the calculated density is around 1050 kg/m^3. However, some users report that this answer is marked incorrect on the CAPA server, suggesting a potential issue with the grading system. Further clarification from a physics professor is recommended to resolve the discrepancy.
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A cubical box 24.85 cm on each side is immersed in a fluid. The pressure at the top surface of the box is 109.47 kPa and the pressure at the bottom surface is 112.03 kPa. What is the density of the fluid?


i used
P2=P1+pgh

P2-P1 divded by gh = p
i used this to solve for p, when i checked my answer, it was wrong.

any help?
 
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Looks okay to me. Did you get 1050 kg/m^3 ?
 
i did. but it keeps comming up wrong :S , there must be something wrong with my CAPA server. ill have a talk with my physics prof tomorroe about it
 
If you wanted to solve for p, wouldn't the equation be:

p = p1-p2 / g*h


You used P2-P1.

I got 1050 too.
 

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