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Question: Consider compressible flow through a long, well-insulated duct. At the inlet to the duct the Mach number, pressure, and temperature are 0.3, 100 kPa, and 30°C respectively. Assuming that the flow is adiabatic and that the pipe is sufficiently long to ensure that the flow is choked at the exit, find the velocity and temperature at the pipe exit.
a round casting is 0. 2 m in diameter and 1 m in length. another casting of the same metal is elliptical in cross
The diffusivity of copper in a commercial brass alloy is 10^-20 m2/s at 500'C. The activation energy for diffusion of copper in this system is 195 kJ/mol. Calculate the diffusivity at 600'C.
A single-stage axial-flow gas turbine stage with a hub/tip ratio of 0.85 is to be designed to give a free-vortex flow after the rotor row and is required to develop 2.6 MW from a gas flow of 30 kg/s.
To what value would the standard deviation of part strength have to be reduced in order to give a failure rate of only 1%, with no other changes?
water flows from a large tank through a 20-m long 3 cm by 2 cm rectangular pipe. flow exits from the tube with velocity
a sling hygrometer measures a dry-bulb temperature of 24. 5 degree c and a wet-bulb temperature of 16 degree c. use a
The room-temperature electrical conductivity of a semiconductor specimen is 25 (ohm-m)-1. The whole concentration is known to be 2.5E+19 m-3. The electron and hole mobilities for this material are 0.38 and 0.18 m2/V·s, respectively. Compute the elect..
for one-dimensional steady state conduction in cylindrical or spherical shell without heat generation is the radical
Objective: The purpose of this set of labs is to gain an understanding in Arduino programming, and capabilities. Students take an Arduino and program it to carry out different functions depending on the specifications of the lab.
A cube whose sides are length L. The cube is open at the top (exposed to an atmospheric pressure, PO), but all of the side and bottom faces are solid material. If L = 3 feet and the temperature of the fluid is 70°F, calculate the pressure at the bot..
Determine the force required to open the valve - What length of cable CD is required for static equilibrium in the position shown? What is the tension T in cable CD?
a rigid insulated cylinder is divided into two parts by a non-insulated frictionless piston which is initially held a
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