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An object whose weight 100 lbf experiences a decrease in kinetic energy of 500 ft. lbf and an increase in potential energy of 1500 ft.lbf. The initial velocity and elevation of the object, each relative to the surface of the earth, are 40 ft/s and 30 ft, respectively. If g= 32.2 ft/s2, determine
(a) The final velocity, in ft/s
(b) The final elevation, in ft.
Four kilograms of water initially at 200 degree Celsius and 0.5 MPa undergo an isothermal, internally reversible compression process to the saturated liquid state. Determine the work and heat transfer involved in the process (in kJ). Sketch the proce..
Two infinite parallel plates are separated by a distance h. The space between them is filled with a Newtonian fluid: density (rho), viscosity (mu). The lower plate is fixed
a 25 degree full-depth spur gear with 45 teeth has an addendum of 13 in. what is the minimum number of teeth the pinion
the arrhenius equation was originally developed for comparing rates of chemical reactions. compare the rates of a
Compute the x-and y-components of the force acting on the pinB connecting the two members of the machine subjected to the 200-N load.
a 0.2-cm-thick 10-cm-high and 15-cm-long circuit board houses electronic components on one side that dissipate a total
Calculate the adiabatic flame temperature attained when methane at 298k, is combusted (a) with oxygen in the molar ratio air/CH4 = 9.524. Assume that CO2 and H2O are the products of the combustion. The adiabatic flame temperature is that temperature ..
gas with an initial volume of 0.36 m3 is slowly compressed to a final volume of 0.16 m3 by a process during which the
the velocity of point p relative to frame a is vpa -14.9 i 19.4 j fts and the acceleration of p relative to frame b
Water at 20 C flows across a flat plate at a velocity of 0.25 m/s. compute the distance from the plate’s leading edge to where the laminar boundary layer thickness is 3 cm. Verfiy that the flow is indeed lamiar at this distance.
0.1kg of water is contained within a piston-cylinder assembly at 100 degree c. the piston is free to move smoothly in
A steam power plant for an automotive vehicle is proposed as shown. The boiler has a volume of 50 litres and initially contains 90% liquid and 10% vapor by volume at 100kPa. The burner is now turned on and when the pressure in the boiler reaches 700k..
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