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What is the required time at 675 degrees celsious to have only 25% Austenite left during the transformation from Austenite to Pearlite?
The steam enters at 320 C, 300 kPa, and the mixture leaves the chamber at 90 C, 300 kPa. Determine exit velocity in m/s if the exit area is 25 cm.
Find an expression for a change in enthalpy during a process 1 to 2. show that for a reversible adiabatic process and for c_v constant during the process, T(v-b)^(R/cv)= Constant.
The water is heated to 300 degrees C. Find the final pressure, volume, work from 1 to 2, and heat transfer from 1 to 2.
Determine all of the reactions and deflection at mid-span (point B) by using singulairity functions. Take EI=575 MNm2 . Your answer must include a sketch of the beam.
A thin metal cylinder contains an ideal gas. The cylinder has a cross sectional area of 100 cm^2. The surroundings outside the cylinder are maintained at 25 degrees C and 101 kPa.
What is the thermal efficiency possible for a power cycle operating for heat transfer from hot reservoir of 627 kJ and heat transfer to the cold reservoir of 73 kJ?
Argon contained in a closed, rigid tank, initially at a temperature of 50C, pressure of 2 bar, and a volume of 2m^3, is heated to a final pressure of 8 bar.
A refrigerator cycle has a COP of 3 and removes 100kW of heat from a building, which is kept at 23C. The device rejects heat to an energy reservoir at 33C. What is the net entropy change in this pro
An industrial machine is being cooled by 0.4 kg/s water at 15 degrees C that is chilled from 35 degrees C by a refiregration unit with a Coefficiency Of Performance of 3.
A patio is in the shape of a circular sector with a central angle of 160.0 degrees. It is enclosed by a railing of which the circular part is 11.6 meters long. What is the area of the patio?
A jet is traveling westward with the sun directly overhead (the jet is on a line between the sun and the center of the Earth). How fast must the jet fly in order to keep the sun directly overhead?
A plate of mass M is suspended between two opposing jets, each of area A, velocity Vo and density d. The plate is suddenly given a velocity Vo parallel to one of the jets.
The arm of a car windshield wiper is 12.75 inches long and is attached at the middle of 15.00 inch blade (assume that the arm and blade are in line.) What area of the windshield is cleaned by the w
What is the maximum possible temperature of the high temperature reservoir to still satisfy the second law of thermodynamics?
A robot is on the surface of Mars. The angle of the depression from a camera in the robot to a rock on the surface of Mars is 13.33 degrees. The camera is 196.0 cm above the surface. How far from t
This part is to withstand a fluctuating tensile load varying from 0 to 20 ksi. The surface is mirror polished. Find the factor of safety guarding against first-cycle yield.
5 Kg of water at 1 atm in a cylinder was heated until it is half boiled. What is the atm inside the cylinder? The tampreture of liquid water ?
10 mol of an ideal gas at 5 atm at 298 K is stored in an insulated piston and cylinder arrangement. How much work does the ideal gas go against the restrain?
A cold heading operation is performed to produce the head on a steel nail. The strength coefficient for this steel is 600MPa, and the strain hardening exponent is 0.22 . Coeff. of friction at die wo
How much electricity does the pump consume? The pump is 70 % efficient, and the motor that drives it is 95 % efficient. Draw the diagram?
A pound of air is used in a Carnot power cycle. At a constant 1540oF the pressure goes from 2710 psia to 1882 psia. Determine The heat transfer during the constant temp expansion.
The brakes of a 1350 kg car are released, and the car is held in place on the plane surface by the cable AB. The car's front wheels are aligned so that the tires exert not friction forces parallel t
Airplane takeoff from an aircraft carrier is assisted by a steam driven piston/cylinder device with an average pressure of 1250 kPa. A 17500 kg airplane should be accelerated from zero to a speed of