Show how pressure
vary with depth
Answers
Explanation:
Variation of Pressure with Depth. One might guess that the deeper you go into a liquid or gas, the greater the pressure on you from the surrounding fluid will be. ... The force PTA due to the pressure on top of the volume of fluid. If the fluid is open to the air, PT = PO = 1.01 x 105 Pa, which is atmospheric pressure.
Answer:
Explanation:
One might guess that the deeper you go into a liquid or gas, the greater the pressure on you from the surrounding fluid will be. The reason for the increased pressure is that the deeper into a fluid you go, the more fluid, and thus the more weight, you have over top of you.
We can calculate the variation of pressure with depth by considering a volume of fluid of height h and cross-sectional area A (see Fig. 9.3).
Figure 9.3: Variation of Pressure with Depth
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If this volume of fluid is to be in equilibrium, the net force acting on the volume must be zero. There are three external forces acting on this volume of fluid. These forces are:
1.