4. A structure is attached to the ocean floor as shown in the figure below. A 2-m-diameter hatch is located in an inclined wall and hinged on one edge. Determine the minimum air pressure, pı, within the container that will open the hatch. Neglect the weight of the hatch and friction in the hinge. Take y = 10. 1x10³ N/m³. Free surface Seawater 10 m 30 Hatch - Hinge Air pressure, P1

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A: Givend=4ft=4×0.3048=1.2192mh1=5ft=5×0.3048=1.524mh2=1.5ft=1.5×0.3048=0.4572mh3=2ft=2×0.3048=0.6096mS…

Q: plane is fitted with pontoons for operation on lakes. As it taxies out for take-off, the plane…

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Q: Question: (10 pts) The 18-ft-long light weight gate in Figure 1 is a quarter circle and is hinged at…

A: Given: length of gate = 18 ft i) Pgauge = ρgh  ρw = 1000 kg/m3        = 1000 x 9.81 x 6 x 12 x…