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A 10-m-tall, 0.1-m-diameter pipe is filled with liquid water at 20?C. It is open at the top to the atmosphere, 100 kPa, and a small nozzle is mounted in the bottom. The water is now let out through the nozzle splashing out to the ground until the pipe is empty. Find the water's initial exit velocity, the average kinetic energy in the exit flow, and the total entropy generation for the process.
A steel scuba tank is 24 in. long and has an external diameter of 7.25 in. and an internal diameter of 6.7 5in. Say the tank is to carry a pressure of 3000psi . Determine the hoop stress in the tank wall. Determine the axial stress in the tank wall.
Plot the magnitude of the force exerted on the gate by the brace as a function of the angle of the gate, , for . Assume the weight of the gate is negligible.
Is depreciation equivalent to both investment and expense which have been categorized as environmental conservation cost
Determine the critical depth in a trapezoidal channel with a 20 foot bottom width and 3:1 (H:V) side slopes if the Q = 1000cfs.
A barge is 60ft long, 20ft wide, and 8ft deep. When empty, it weighs 210,000lb, and its center of gravity is 1.5ft above the bottom. Is it stable when floating in water?
A microwave oven has a rotating plate for uniform cooking. The plate takes 8 seconds to complete one revolution and is driven by three rollers.
Consider two identical rooms, one with a 2-kW electric resistance heater and the other with three couples fast dancing. In which room will the air temperature rise faster?
What is the concentration of NH3 (in mg/L) of household ammonia that contains 3.00 percent by wieght of NH3. Assume the density of water = 1000kg/m^3
If a tractor with 23-hp, a max speed of 3.6 mph in 1st gear and an effieiciency of 92% is operated operated down a 4% slope and the rolling resistance is 80 lb/ton, what is the maximum external pull in each of the 4 gears.
A cyclist is riding along a 25 mph and begins to coast just before encountering a hill with a 6% grade. How far up the hill can she coast before coming to a stop? Ignore air resistance and rolling friction.
A Timber power-line pole is 10 in. in diameter at its base where it is solidly embedded in concrete. The pole extends 20 ft vertically upward from its base and is subjected to a horizontal pull of 300 lb at its top.
Construct the hysteresis loops for a small amplitude at which only the softer elements yield plastically and for a larger amplitude at which both elements yield plastically.
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