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Warm air is contained in a piston-cylinder assembly oriented horizontally as shown below. The air cools slowly from an initial volume of 0.003 m3 to a final volume of 0.002 m3. During the process, the spring exerts a force that varies linearly from an initial value of 900 N to a final value of zero. The atmospheric pressure is 100 kPa, and the area of the piston face is 0.018 m2. Friction between the piston and the cylinder wall can be neglected. For the air, determine the initial and final pressures, in kPa, and the work, in kJ.
Design Engineering: Find Specific Load and Heat Generated Per Minute, A load of 6400 Kg is carried by a journal rotating in a 270 mm bearing diameter and 400 mm long. Find the specific load on the bearing and the heat generated per minute in the b..
Draw the Mohr's circle for this stress state, deterrnine the principal stresses and the angle of the principal direction to the x-axis and determine the maximum shear stress.
A 0.453-Kg mass attached to a light spring elongates it by 7.87mm. Determine the natural frequency of the system.
A first class lever in static equilibruim has a 50 lb resistance force and 15 lb effort force. The lever's effort force is located 4 ft from the fulcrum. What is the actual mechanical advantage of the system?
No heat interactions with the environment are allowed. You do not need to describe the details of the process that produces the maximum work, but you do need to describe the final state of the blocks fully.
find the total heat loss per m length of the steam line. Find also the temperature at the interface of steam and insulation.
Twenty-five samples of steel beam were chosen and tested for Young's Modulus. Eight had a modulus of E = 30 x 10^6 psi. Two had a modulus of E = 29 x 10^6 psi. Fifteen had a modulus of E = 30. x 1-^6 psi.
Determining Feasibility, At steady state, a new power cycle is claimed by its inventor to develop 6 horsepower for a heat addition rate of 400 Btu/min
Aeroplane Dynamics, Determine the steady thrust that would enable a 200-tonne airliner to reach its take-off speed (75 m sâ?'1), from rest, in 30 s
Package Design Brief: Assume you are the packaging engineer for a large consumer products company. In this company, the Packaging Design Briefs are initiated by the marketing group and forwarded to the Package Engineering group.
a 1.5 ton crate is hoisted by three steel wires. each wire is 1/4 in. in diameter and each carries one-third of the load. determine the stress in the wires.
Get information about a car engine .drive the ideal performance using the appropriate cycle and compare to the actual performance.
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