You may assume that tank internal pressure is always in equilibrium with the ocean's hydrostatic pressure and that the inlet pipe to the tank is at the bottom of the tank and penetrates the hull at the "depth" of the submarine. Note as well that the dimensions in many of the images will not be perfectly to scale in. In each case consider the top of the blue box to be the surface of the water in which the plate is submerged. Find the hydrostatic force on the following plates submerged in water as shown in each image. Consider the difference between fluids and solids. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Section 8.4 : Hydrostatic Pressure and Force. Consider a ballast tank, which can be modeled as a vertical half-cylinder $(R=8 \mathrm$ is important in maintaining the boat's attitude, determine the weight of water in the tank as a function of depth during the dive. 42K Learn what a fluid is, and understand the properties and characteristics of fluids and in physics. The amount of water admitted is controlled by air pressure, because seawater will cease to flow into the tank when the internal pressure (at the hull penetration) is equal to the hydrostatic pressure at the depth of the submarine. A submarine submerges by admitting seawater $(S=1.03)$ into its ballast tanks.
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