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Determine the enthalpy change and the entropy change of nitrogen per unit mole as it undergoes a change of state from 225 K and 6 MPa to 320 K and 12 MPa,
(a) By assuming ideal-gas behavior and
(b) By accounting for the deviation from ideal-gas behavior through the use of generalized charts.
Determine displacement (in) of a 1.08 in diameter steel bar, which is 834 ft long under a force of 33,222 lb if elasticity modulus is 30 x 106 psi. Make sure you do not round up your answer to less than 4 significant (non-zero) figures.
The technical literature contains discussions of ways for using tethered kite-mounted wind turbine systems to harvest power from high-altitude winds, including jet streams at elevations from 6 to 15 kilometers (4 to 9 miles). Analysts estimate tha..
link bc is 6 mm thick and is made of a steel with a 450-mpa ultimate strength in tension. what should be its width w if
in 2001 the united states produced 51 of its electricity in the amount of 1.878 1012 kwh from coal fired power plants.
An adiabatic turbine has steam flowing steadily through it. The inlet conditions of the steam are P1=6 MPa, T1= 400C and v1=80 m/s, while the exit conditions are P2= 40kPa, .9 quality x=.9, and v0= 50 m/s. The mass flow rate of the steam is m= 20kg/s..
estimate the flaw size responsible for the failure of a turbine rotor made from high strength steel having a yield
A US Department of Energy article states that a leak of one drip of hot water per second can cost $1.00 per month. Making reasonable assumptions about drop size and unit cost of energy, determine if this claim is reasonable.
The rules have been laid out for you by a baseball fan with limited knowledge of the game as follows: Give the steal sign if there is a runner on first base and
air enters an ideal diffuser operating at steady state at 1 bar -3degc and 260 ms and exits at with a velocity of 130
Determine the tension in the cables DE and BC and the components of reaction of the smooth collar at A. The sign weighs 75 lb.
a pipe in a manufacturing plant is transporting superheated vapor at a mass flow rate of 0.3 kgs. the pipe is 10 m long
a 110 scale model of an automobile is tested in a pressurized wind tunnel. the test is to stimulate the automobile
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