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An artificial lake is impounded by an earth dam with a square-edged orifice 12 inches by 12 inches for drawdown. The elevation of the surface of the lake is 928.75, and the invert of the orifice is 905.25. When the orifice is opened, what discharge in cfs flows through into the stream below the dam?
A bead of mass m slides without friction along a wire which has the shape of a parabola my= Ax^2 with its axis vertical in the Earth’s gravitational field g. Find the Lagrangian, taking as generalized coordinate the horizontal displacement x.
Calculate the specific weight of toluene at a place where the acceleration of gravity is 32.2 ft/s^2or 9.81 m/s^2. Express your answer in both lbf/ft^3 and kg/m^3. Repeat this for Mars whre the acceleration due to gravity is 37.5% of that on Earth.
An Incompressible fluid flows through a 10-in diameter horizontal constant area pipe. At one section the pressure is 150 psia and 1000 ft downstream the pressure has dropped to 100 psia.Find the total frictional force exerted on the fluid by the pipe
Calculate the force required in direct extrusion of 1100-O aluminum from a diameter of 6 in. to 2 in. Assume that the redundant work is 30% of the ideal work of deformation, and the friction work is 25% of the total work of deformation.
a 60-kg woman holds a 9-kg package as she stands within an elevator which briefly accelerates upward at a rate of g4.
A glider w ith mass m = 0.20 kg sits on a frictionless horizontal air truck, connected to a spring w ith force constant K = 5.00 N/m. You pull on the glider, stretching the spring 0.100m, and then release it w ith no initial velocity.
Is the system linear or non-linear. Using am example to verify your conclusion. Is the system time-variant or time-invariant.
a 1000 ft. long bridge with a steel superstructure steel alloy a36 is subjected to seasonal temperature extremes of -40
liquid oxygen flows at 90 k inside 3 cm o. d 2 mm wall thickness aisi 302 stainless steel tube with an interior
a system has an initial volume of 10 ft3 and expands to a final volume of 20 ft3. the initial pressure is 14.7 psi.
a round casting is 0. 2 m in diameter and 1 m in length. another casting of the same metal is elliptical in cross
a rigid tank whose volume is 0.5 m3 initially containing ammonia at 20oc 1.5 bar is connected by a valve to a large
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