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Prove that F = (y2 cos x + z3)i + (2y sin x - 4)j + (3xz2 + z)k is a conservative force field. Hence find the work done in moving an object in this field from (0, 1, -1) to (π/2, -1, 2).
sixty kilograms per hour of water runs through a heat exchanger entering as saturated liquid at 200 kpa and leaving as
Saturated water vapor at 2308F is sprayed into the moist air, which then exits the device at a relative humidity of 50%. Heat transfer between the device and its surroundings can be ignored, as can kinetic and potential energy effects.
find an expression for how the daimeter of of glass cylinder containing the mercury must change with length for the
A solid metallic rod & beams are similar to look but ASME treat them as different components, can anyone tell what's the real difference between them ?
air contained in a piston-cylinder assembly contains air initially at 2 bar 300 k and a volume of 2 m3. the air
a special c-clamp uses a 0.5-in. diameter acme thread and a collar of 0.625-in. effective mean diameter. the collar is
A piece of pipe 0.3048m long weighing 13.34N and having internal diameter of 0.05207m is slipped over a vertical shaft 0.0508m in diameter and allowed to fall. Calculate the approximate velocity attained by the pipe if a film of oil of kinematic visc..
A 12-ft^3 rigid tank contains refrigerant-134a at 40 psia and 55 percent quality. Heat is transferred now to the refrigerant from a source at 120 °F until the pressure rises to 60 psia. Assuming the surroundings to be at 75 °F, determine the a) amoun..
To what value does this series converge when t = 1
Treating the problem as two-dimensional, determine the equivalent force-couple system at the car center of mass G and locate the position x of the point on the car centerline through which the resultant passes. Neglect all forces not shown.
Refrigerant 134a flows at steady state through a horizontal tube with inner diameter of 0.05 m. The refrigerant enters the tube with a quality of 0.1, temperature of 36 C, and velocity of 10 m/s. The refrigerant exits the tube at 9 bar as a saturated..
A cooking pot whose inner diameter is 20 cm is filled with water and covered with a 4-kg lid. If the local atmospheric pressure is 101 kPa, determine the temperature at which the water starts boiling when it is heated.
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