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An ideal gas expands isentropically through a converging nozzle from a large tank at 120 lbf/in.2, 6008R, and discharges into a region at 60 lbf/in.2 Determine the mass flow rate, in lb/s, for an exit flow area of 1 in.2, if the gas is
(a) air, with k 5 1.4.
(b) carbon dioxide, with k 5 1.26.
(c) argon, with k 5 1.667.
n air compressor operates at steady state with air entering at p1 1 bar t1 17 c and exiting at p2 5 bar. the air
assume that in orthagonal cutting the rake angle is 20 degrees and the friction angle is 35 degrees at the chip-tool
An 80-mm × 40-mm rectangular beam is made of heat treated AISI 4340. On the tension side of the beam, a transverse crack of length 10 mm is discovered. Determine the magnitude of the bending moment M that will cause brittle fracture.
Using the ideal gas model with specific heat ratio, k = 1.4, and ignoring potential energy effects, determine (a) the exit velocity, in m/s, and (b) the rate of heat transfer, in kJ per kg of gas flowing through the nozzle.
a crane is lifting concrete to a construction project where the acceleration of gravity is 31 fts2. if a 400 lbm
name three countries with the largest percentage of the world coal proved reserve. using the latest value of us coal
the lower yield point for an iron that has an average grain diameter of 5 x10-2 mm is 135 mpa 19500 psi. at a grain
a methane combustion chamber has the following inlet conditions kj 1000j t2693 k mfr280.4kgsec ft0.026 tf480k hm50000
a gas-turbine power plant operates on a simple ideal brayton cycle with air as the working fluid. the air enters the
a hollow sphere is constructed of aluminum with an inner diameter of 4 cm and an outer diameter of 8 cm. the inside
(a) The temperature profile as a function of radial position
a hydraulic lift system utilizes two 3 in. diameter cylinders. workers must determine how much the system is capable of
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