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A pipe transports water in a 4-cm-diameter pipe with an average velocity of 10 m/s. The pipe undergoes a 90 degree bend and exits out a 2-cm-diameter nozzle. Assuming no friction losses in the bend, the total force of teh water on the bend is nearest:
A) 1070 N
B) 1180 N
C) 729 N
D) 502 N
assume that a person is on a roof and that the structure has a circular cross section. if the interface is frictionless
underwater submersibles must match the local density in order to remain neutrally buoyant. maximum dive depths for
the collar has a mass of 20kg and is supported on the smooth vertical rod. the attarched springsare undeformed when d=0.5m determine the speed of collar after the applied force F=100N causes it to be displaced so that d=0.3m when d=0.5m, the colla..
steam enters a nozzle operating at steady state at 20 bar temperature 280c with a velocity of 80 ms. the exit pressure
Calculate the number of vacancies per cubic meter in some metal at 753°C. The energy for vacancy formation is 0.81 eV/atom, while the density and atomic weight for this metal are 6.38 g/cm3 and 49.43 g/mol, respectively. Find in m^-3 units.
an automobile tire with a volume of 0.6m3 is inflated to a gage pressure of 200 kpa. calculate the mass of air in the
an air conditioner running with r-134a on a cycle executed under the saturation dome between the pressure limits of 0.8
hydrogen gas is contained in a vertical piston-cylinder device at 14.7 psia and 15 ft3. at this state a linear spring
water at 200 kpa and 10 degree celcius enters a mixing chamber at a rate of 150 kgmin where it is mixed steadily with
the piston-cylinder device initially contains 0.05m3 of saturated liquid water at 30c. the spring is set such that the
jus before it lifts off a 10500 kg airplane is traveling at 60 fts. the total horizontal force exerted by the planes
Two kilograms of Refrigerant134a, initially at 2 bar and occupying a volume of 0.12 m3, undergoes a process at constant pressure until the volume has doubled. Kinetic and potential energy effects are negligible. Determine the work and heat transfe..
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