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An object whose mass is 300 lb experience changes in its kinetic and potential energies owing to the action of a resultant force R. the work done on the object by the resultant force is 140 Btu. There are no other interactions between the object and its surroundings. If the object's elevation increases by 100 ft and its final velocity is 200 ft/s. what is its initial velocity, it ft/s? Let g=32.2 ft/s2.
A 5-ft 3 rigid tank contains a saturated mixture of refrigerant-134a at 50 psia. If the saturated liquid occupies 20 percent of the volume, determine the quality and the total mass of the refrigerant in the tank
a sled is at the top of a snowhill that has a vertical height of 150 ft and slopes down with an angle of 20 degrees. if
an insulated piston-cylinder device contains 0.05m3 of saturated refrigerant-134a vapor at 0.8mpa pressure. the
steam at 80 bar 440oc enters a turbine at 1operating at steady state with a volumetric flow rate of 236 m3min. twenty
the water level of a tank on a building roof is 20m above the ground. a hose leads from tank bottom to the ground. the
pin p is constrained to move along the curve defined by the lemniscate r 4 sin 2theta ft. if the angular position of
r-134a is contained in a vertical cylinder fitted with a frictionless piston and a set of stops and the volume is
two insulated tanks are connected by a valve. one tank initially contains 1.2 ib of air at 240 f 30 psia and the other
a rigid insulated 1.4 m3 container initially contains steam at 1.4 mpa and a quality of 85. liquid water at 10 deg c is
a satellite in earth orbit has a mass of 108 kg and is at an altitude of 1.99 106 m.a what is the potential energy of
Determine the force in member CH of the truss - Determine the forces in the marked members "F2 and F1" of the truss.
a helical tension spring is made of 1.2 mm wire having a yield strengths of 1280 mpa tension and 740 mpa torsion. the
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