\r\n Consider an object that is submerged in a fluid. The object experiences pressure due to weight of the fluid above it.\r\n Pressure experienced by an object submerged in a fluid at rest is called hydrostatic pressure.\r\n
\r\n\r\n The magnitude of hydrostatic pressure experienced by an object submerged in a fluid depends upon\r\n the density of the fluid and the depth.\r\n
\r\n $$P = \\rho g h$$\r\n where \\(\\rho\\) is the density of the fluid, \\(g\\) is the acceleration due to gravity and \\(h\\) is the depth.\r\n
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Through this interactive module, students will learn how hydrostatic pressure at a point in a fluid changes with depth.
\r\n\r\n Billy is an environmental scientist who studies icebergs. During one of his expeditions, he needs to measure the depth of an iceberg.
\r\n However, he doesn't have a measuring tape or a rope that is long enough to reach the bottom of the iceberg.\r\n So, he uses the hydrostatic pressure formula \\(P =\\rho g h\\) to find the depth.
\r\n He knows the density of water is \\(\\rho = 1000 \\text{ kg/m}^3\\), and the acceleration due to gravity \\(g = 9.8 \\text{ m/s}^2\\).
\r\n He figures out that if he can measure the pressure \\(P\\) at the depth\r\n of the iceberg, he can calculate the depth of the iceberg: \\(h = P/\\rho g \\).
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