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A 4.5 in. outside diameter polyethylene pipe designed to carry chemical wastes is placed in a trench and bent around a quarter-circular 90° bend (see figure). The bent section of the pipe is 46 ft long.
Determine the maximum compressive strain emax in the pipe.
1. Is it possible for two screw dislocations of opposite sign to annihilate each other? Explain your answer. 2. For each of edge, screw, and mixed dislocations, cite the relationship between the direction of the applied shear stress and the directi..
assume that a person skiing in the mountains at an altitude of 15000 ft takes in the same volume of air with each
Name the two types of devices that constitute the computer aided design hardware
Air at 1 atm with dry-bulb and wet-bulb temperatures of 82 and 688F, respectively, enters a duct with a mass flow rate of 10 lb/min and is cooled at essentially constant pressure to 628F. For steady-state operation and negligible kinetic and p..
at 100 lbfin2 saturated vapor h2o flows in a pipe. a valve is opened to vent a small amount to the atmosphere. assuming
a 200-w vacuum cleaner is powered by an electric motor whose efficiency is 80. note that the electric motor delivers
an 800 ft ship has a displacement of 37600 tons and the area defined by the waterline is 38000 ft2. a will the ship
Specify the proper fail-safe action for the valves in the following services. Please explain your reasons. A valve manipulates the flow rate of reactant to a reactor vessel. The reaction is exothermic
Steam enters a turbine steadily at 10 MPa and 550oC with a velocity of 60 m/s and leaves at 25 kPa with a quality of 90 percent. A heat loss of 30 kJ/kg occurs during the process. The inlet area of the turbine is 200 cm2, and the exit area is 1400 cm..
one-tenth kg of a gas in a piston-cylinder assembly undergoes a carnot power cycle for which the isothermal expansion
Calculate the pressure of 15.0g of methane gas in a 1.50L vessel at 45.0 degrees C using (a) the Ideal Gas Law and (b) the van der Walls equation using the following information about the constants, a and b: a = 2.253 and b = 0.04278.
a refrigerator removes 1.5 kj from the cold space using 1 kj work input. how much energy goes into the kitchen and what
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