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1. A square gate, 4 m by 4 m, is located on the 45° face of a dam. The top edge of the gate is 8 m below the water surface. Determine the resultant force of the water on the gate, and the point through which it acts.
2. A long, vertical wall separates seawater from fresh water. If the seawater is 7 m deep, what depth of freshwater is required to yield a zero resultant force on the wall? When the resultant force is zero, will the net moment on the wall due to fluid forces also be zero? Explain.
A long, solid cylinder of radius 2 ft hinged at point A is used as an automatic gate, as shown in Fig. P3-61E. When the water level reaches 15 ft, the cylindrical gate opens by turning about the hinge at point A.
sulfur dioxide so2 enters a pollution clean-up device at a temperature of 200c and a pressure of 10 mpa. at that point
Steam at 15 bar and 350 degrees C is expanded through a 50% reaction turbine to a pressure of 0.14 bar. The stage efficiency is 80% for each stage and the reheat factor is 1.05.
spherical balloon has a diameter d1 when the pressure of the gas inside is p1 and atmospheric pressure is po. the gas
Specify the spring constant,the damping coefficient, and the unbalance of the exciter.
consider oxygen undergoing a steady-state steady-flow polytropic process n 1.2 from an initial temperature and
A cylindrical tool steel specimen that is 6 in. long and 0.25 in. in diameter rotates as a cantilever beam and is to be designed so that failure never occurs. Assuming that the maximum tensile and compressive stresses are equal, determine the maxi..
Calculate the operational availability for a power generator with 1 scheduled maintenance per 1000 hours of operation and failure rate of 0.6 failures per 1000 hours.
baseline validationdetermine the natural frequencies of the system-for the baseline systemdesign modificationnotice
The flow rate of liquid metal into the downsprue of a mold = 1 liter/sec. The cross-sectional area at the top of the sprue = 800 mm2and its length = 275 mm. What area should be used at the base of the sprue to avoid aspiration of the molten metal?
A piston-cylinder device contains steam initially at 1 Mpa, 450 degrees celcius and 2.5 m^3. Steam is allowed to cool at constant pressure until it first starts condensing. Show the process on T-v diagram with respect to saturation lines and determin..
a thin-walled circular tube must support a torque of 6 kn.m and a pure bending moment of 4.4 kn.m. if the wall
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