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Liquid at 23 degree C flows at 2 m/s over a smooth, sharp-edged, flat surface 12 cm in length which is kept at 57 degree C. Calculate h at the trailing edge (a) if the fluid is water; (b) if the fluid is glycerin (h = 346 W/m2K). (c) Compare the drag forces in the two cases. [There is 23.4 times as much drag in the glycerin.] Air at -10 degree C flows over a smooth, sharp-edged, almost-flat, aerodynamic surface at 240 km/hr. The surface is at 10 degree C. Find (a) the approximate location of the laminar turbulent transition; (b) the overall h- for a 2 m chord; (c) h at the trailing edge for a 2 m chord; (d) delta and h at the beginning of the transition region. [delta xt should be around half a millimeter.]
a pinroller supports resist . rotation displacement rotation and displacement none of the aboveb inflection points
A collar B of weght W can move freely along thevertical rod. The constant of the spring is k and the spring is unstretched when theta=0. Derive an equation in W thrta k and l that must be satisfied when h collar is in equilibrium.
a swimming pool has a slanted floor . there is no change in depth across the 4 meter width. assume that water has a
carbon dioxide is compressed in a reversible adiabatic process from 15 psia 70of to 60 psia using a steady-flow device
determine the average applied force exerted on to the pile hammer. Note because the force is applied over a short time period it can be considered as an impulse force.
steam is expanded from 20 bars 280 c to 100kpa through an adiabatic steady flow turbine whose isentropic efficiency is
steam at 75kpa and 13 percent quality is contained in a spring loaded piston-cylinder device with an initial volume of
a high-velocity water jet at 30 degrees celcious is proposed for use as a cutting device with possible applications in
Both cars undergo constant acceleration. Determine the time when the two cars pass each other on the highway.
the adjoining figure illustrates a piston-cylinder arrangement. this cylinder contains helium at 21oc and 1.379 mpa.
determine the power produced by a simple sprinkler-like turbine that rotates in a horizontal plane at 500 rpm. the
find the entropy production in a throttling process per unit mass for ammonia. take the inlet state as specified as
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