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1. The pump in the boat shown pumps 6 ft3 /s of water through a submerged water passage, which has an area of 0.25 ft2 at the bow of the boat and 0.15 ft2 at the stern. Determine the tension in the restraining rope, assuming that the inlet and exit pressures are equal.
2. Oil (sp. gr. = 0.8) flows smoothly through the circular reducing section shown at 3 ft3 /s. If the entering and leaving velocity profiles are uniform, estimate the force which must be applied to the reducer to hold it in place.
Determine the fraction of the incident solar irradiation that is absorbed and what is the emissivity of the disk surface
Saturated water vapor at 2308F is sprayed into the moist air, which then exits the device at a relative humidity of 50%. Heat transfer between the device and its surroundings can be ignored, as can kinetic and potential energy effects.
What four criteria has the SEC issued as further guidance for revenue recognition?
The result for Problem 9.12 predicts that the average velocity for turbulent flow will be found at a distance of 0.216r 0 from the wall of the pipe. Compute this distance for a 24-in Schedule 40 steel pipe. Then, if the pipe carries water at 50°F ..
Derive an expression for the heat loss conductance Uc for a flat-plate collector in which convection and conductance are completely eliminated in the air layers by use of a hard vacuum.
A steam power plant operates between the pressure limits of 4.5MPa and 15kPa. Steam enters the pump as saturated liquid and leaves the turbine as saturated vapor. Determine the ratio of the work delivered by the turbine to the work consumed by the pu..
water enters a 20ft long cylindrical pipe at a mass flow rate of 20 slugssec. the inside pipe diameter is 8cm. the
A hydraulic system is operating at a Reynolds number of 1000. if the temp increases so that the oil viscosity decreases, would the Reynolds number, increase, decrease, or remain the same explain. Show all work and explain
a gate is 0.5 m wide and 0.6 m tall and is hinged at the bottom. on one side the gate holds back a 0.5 m deep body of
a closed rigid stationary and adiabatic pressure vessel initially contains two-phase h2o at a pressure of 175 kpa and a
A certain power station produces an electrical output of 700 MW, operating at 42% efficiency. This plant uses a closed-circuit "dry" cooling system in which heat is expelled by cycling the cooling water through pipes which are in direct contact with ..
saturated ammonia vapor leaves an evaporator at 10 f and 0.5 lbms. the velocity must be less than 15 fts. what is the
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