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Fluids Challenge #2 — Pressure & Depth

Pressure
at depth.

Fluids Medium

Problem

A diver descends to a depth of 25 m in a freshwater lake. Calculate the pressure due to the water alone at this depth, in kilopascals.

  • Depth\( h = 25\ \mathrm{m} \)
  • Water density\( \rho = 1000\ \mathrm{kg/m^3} \)
  • Gravity\( g = 9.8\ \mathrm{m/s^2} \)
  • Answer inkilopascals
Water pressure only — leave the atmosphere out of it.
Hint: the pressure from a column of liquid is \( P = \rho g h \) — density, gravity, depth, multiplied straight through. Watch the final unit: the answer is asked for in kPa.
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