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Air enters a one-inlet, one-exit control volume at 6 bar, the pressure is 3 bar, the temperature is 456.5 K, and the velocity is 300 m/s. The air behaves as an ideal gas for steady-state operation, determine: (a) the mass flow rate in kg/s (b) the exit flow area, in cm^2
a particle is moving along a curved path that is defined by xy2 100 where x and y are positive and measured in inches.
a metal matrix composite mmc is made of a 2024 al alloy matrix and continuous nbspboron fibers. the boron fibers are
The element of volume delta V of the right circular cone of altitude h and base radius r is formed by slicing the cone at a distance x from the vertex. if the slice is finite thickness delta x, show that its delta v is [pi*r^2/h^2][x^2*deltax+x(delta..
the load on a 2 inch diameter hydraulic cylinder increases from 10000lb to 15000lb. due to compressibility of oil the
a piston-cylinder device contains 0.8 kg of an ideal gas. the gas is cooled at constant pressure until its temperature
a vertical piston cylinder assembly with a piston of mass 25 kg and having a face area of 0.005 m2 contains air. the
a bubble of air is suspended in clean water at ambient pressure and temperature.a. how do the pressure and the number
a man pulls himself up the 15o incline by the method shown. if the combined mass of the man and the cart is 100 kg
an insulated rigid-wall tank contains air at 20 c and 2 bar. a paddle wheel located in the tank does work on the air in
Fireclay brick of dimensions 0.06 m x 0.09 m x 0.20 m is removed from a kiln at 1600 K and cooled in air at 40oC with h=50 W/m2/K. What is the temperature at the center and at the corners of the brick after 50 minutes of cooling?
a heat engine consists of a compressor a turbine and two heat exchangers using air as the working fluid. the compressor
on a hot summer day a student turns his fan on when he leaves his room in the morning. when he returns in the evening
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