Pressure, Density, and Atmospheric Pressure

  • Thread starter kallisti
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Homework Statement



What is the absolute (total) pressure at the depth of 15 m below the surface of the sea. Assume density of seawater is 1.03 g/cm3 and g=10 m/s2. Give answer in kPa. Use atmospheric pressure is 101 kPa.


Homework Equations



P = F/A
P1V1=P2V2


The Attempt at a Solution



i don't know how to solve it because neither of the formulae my teacher gave me have atmostpheric pressure or density and the problem doesn't have volume please help!
 

Answers and Replies

  • #2
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Pressure in this case doesn't depend on volume, it just depends on gravity, density and the height of the fluid column above you. You've probably seen the equation before- p=d*g*h.

The total, then, is just that plus atmospheric pressure.
 

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