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A variable mesh screen produces a linear and axisymmetric velocity profile as indicated in Fig. P5.70 in the airflow through a 2-ft-diameter circular cross-sectional duct. The static pressures upstream and downstream of the screen are 0.2 and 0.15 psi and are uniformly distributed over the flow cross-sectional area. Neglecting the force exerted by the duct wall on the flowing air, calculate the screen drag force.
piston cylinder contains 1 kg of water. initially the water is at 200 kpa 20 degrees celsius. water is now heated until
the disk is horizontal and turns so that d thetadt ct about the vertical. forces cause a marble to move in a slot
What is the surface absorptivity to direct solar radiation that is incident at an angle of 45° from the normal? What is the absorptivity to diffuse irradiation?
air enters an adiabatic compressor at 20 degc and 100 kpa at a rate of 2 kgs and exits at 700 kpa. if the power input
1. An aluminum bar 125 mm (5.0 in.) long and having a square cross section 16.5 mm (0.65 in.) on an edge is pulled in tension with a load of 66,700 N (15,000 lbf), and experiences an elongation of 0.43 mm (1.7 X 10-2 in.). As- suming t..
i need the answer with calculating steps and details. assignment attached as a jpeg for reference
two circus performers pyramus and thisbe. pyramus will swing back and forth with amplitude 8 on a trapeze bar that
liquid water at a pressure of 1 bar is pumped to a pressure of 100 bar. during the process the temperature of the
steam is expanded in an adiabatic turbine from a single inlet to a single oulet during an internally reversible
a tank with a volume of 1 m3 is filled with 10 kg of water. with a pressure of 1.1 mpa in the tank the water is a
consider steady heat transfer through a 5m x 6m brick wall of a house of thickness 30 cm. on a day when the temperature
1.explain the development and passage pof the Occupational health and safety act (OSH Act) What were some of the primary reasons behind the passage ?2. Compare and contrast how the present day rate of accidental work deaths compares with the early 1..
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