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A stainless steel rod with a circular cross section has a length of 100 mm and a diameter of 2.0 mm. It is deformed elastically in compression by a force of 500 N applied parallel to its length. The material has a Young’s modulus of 200 GPa, and a shear modulus of 77 GPa. Calculate (i) the amount by which the rod will decrease in length, and (ii) the amount by which the rod will increase in diameter.
refrigerant 134a enters an adiabatic compressor as saturated vapor at 200kpa at a rate of 30 kgmin and is composed to a
Argon is contained in a 1 L piston-cylinder device at T=300 K and P=100 kPa. Heat is added and the volume is allowed to expand at constant pressure. If the final temperature is 400 K, find the heat added. Assume a constant specific heat capacity. Exp..
what force would be required to start a 250lb crate sliding across a cement floor which has a coefficient of static
Air enters an 8” diameter pipe at atmospheric pressure at a velocity of 30 ft/s and 65 F and exits at approximately the same pressure. While in the pipe, the air passes over a heat exchanger that causes its temperature to increase by 25 F.
A closed rigid, well-insulated tank contains 2 kg of saturated mixture of water at 159kPa. Initially, three-quarters of the mass in the tank is saturated liquid. An electric resistance heater placed in the tank is connected to a 11-V source and curre..
a stationary gas turbine power plant operates on a simple ideal brayton cycle with air as the working fluid. the air
an egg can be approximated as a 5.5cm diameter sphere. the egg is initially at a uniform temperature of 8c and is
air flows past a 1-m diameter thin circular disk oriented normal to the flow. if the pressure distribution on the front
a cylinder fitted with a piston has a volume of 0.1 m3 and contains 0.5 kg of saturated liquid and vapor steam at 0.4
A 2-Mg car has a velocity of v1 = 100 km/h when the driver sees an obstacle in front of the car. It takes 0.7s for him to react and lock the brakes, causing the car to skid. If the car stops when it has traveled a distance of 225m, determine the coef..
a well-insulated rigid tank contains 5 kg of a saturated liquid-vapour mixture of water at
air enters an insulated diffuser operating at steady state at 1 bar -3 degrees c and 260 ms and exits with a velocity
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