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A mass of 2.4 kg of air at 150 Kpa absolute and 12 degrees Celsius is contained in gas tight, frictionless piston cylinder device. The air now compressed to a final pressure of 600kPa abs. During the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the .ork input during this process. R(air)=287j/KgK
As shown, a 130 lb bungee jumper wants to jump from the top of a 655 ft high bridge and be able to just touch the water below. Given that the bungee cord has a spring constant of 2.33 lb/ft, what should the bungee cord's relaxed length, l, be for ..
Calculate the ultimate tensile strength (engineering) of a material whose strength coefficient is 700 MPa and a tensile test specimen which necks at an engineering tensile strain of 0.35.
What is the minimum energy in the conduction band, and where can it be found in the Brillouin zone?
Estimate the temperature of the hottest point in the billet after five minutes of quenching. Neglect end effects; make the calculation for a cylinder of the given diameter but of infinite length.
Two control rods are attached at A to lever AB. Using trigonometry and knowing that force in the right-hand rod is F2=20 lb, determine a.) the required force F1 in the left-hand rod if the resultant R of the forces exerted by the rods on the le..
A plate, 0.001 in distant from a fixed plate, moves at 2 feet per seconds and requires a force of 0.04l bar per feet square to maintain this speed. determine the fluid viscosity of the substance between the plate.
Thin walled box beam with end load at an angle. A box beam made from an extruded aluminium ally having 5 414 mm wall thickness is loaded by an inclined force P=100 N
Find the turbine's (b) isentropic efficiency (%), (c) reversible work (kJ/kg), (d) irreversibility(kJ/kg), and (e) exergy destruction (kJ/kg). (f) Draw a T-s diagram of the process
what is the cooling temperature range obtained by thermoelectric refrigeration?
Show the principle stresses on the neutral axis on a correctly oriented element relative to the axis of the beam.
Determine the required length L of each splice if a factor of safety is 2.75.
Entropy Generation in a Steam Turbine, Steam at a rate of 15lbm/s enters a turbine at 500 Psia, 800f and exits at 5 Psia. For a reversible, adiabatic process (iseentropic)
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