4. The rectangular homogeneous gate shown below is kept closed by the force applied to the gate at a distance of 1 m above the fluid surface. If the fluid on the left side of the gate has a mass of 800 kilograms per cubic meter, the magnitude of the force F required per meter of width to keep the gate closed is most nearly, in kN/m, A. 6.6 B. 8.8 C. 12 D. 35
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First, let's calculate the weight of the fluid on the left side of the gate. The weight of an object is given by the formula weight = mass x gravity, where gravity is approximately 9.8 m/s^2. Weight of fluid = mass of fluid x gravity = 800 Show more…
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