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A round bar having a length of 2 m and a diameter of 10 mm is made of an aluminum alloy for which the stressstrain diagram can be described mathematically by the following equation:
in which σ has units of megapascals (MPa). The shape of this stress-strain diagram is shown in the figure. The bar is axially loaded by tensile forces P = 20 kN, after which the loads are removed. What is the permanent set of the bar?
Calculate the pBr of a bromide-containing solution that IS saturated With CuBr and contained in the cell described in (b) if the resulting potential IS -0.095 V.
Consider an electric motor with shaft power output of 20kW and an efficiency of 88%. Determine the rate at which the motor dissipates heat to the room it is in when the motor operates at full load. In winter, this room is normally heated by a 2-kW re..
2 kg of water is contained in the vertical frictionless piston cylinde device.the mass of the piston is such that the
the area of a rectangle with a perimeter of 200 cm is modeled by a function a 100l - l2 where l is the length of the
to maintain a dwelling steadily at 68 f on a day when the outside temperature is 32 f heating must be provided at an
A 2500 word evaluation report on a contemporary spatial plan requiring the development of an evaluation framework using principles of spatial and/or environmental planning.
a piston cylinder device contains 1 kg water at 20oc with a volume of 0.01 m3 by mistake someone locks the piston
he engine of a 1000 kg car generates thrust. this force is applied at the interface of the wheels and the road. it is
air enters a regenerator at a pressure of 1mpa temperature of 550 k and mass flow rate of 800 kkgmin. heat is
Construct Mohrs circle. Represent the state of stress on an element oriented 30o counterclockwise from the position - Determine the largest axial load it can support before it either begins to buckle or yield.
consider a gas turbine cycle with two stages of compression and two stages of expansion. the pressure ratio across each
A Siemens SWT-2.3-82 wind turbine has a rated capacity of 2.3 MW and a rotor diameter of 82.4 meters. The wind turbine has cut-in and cut-out speeds of 5 m/s and 27.5 m/s, respectively and is rated at a wind speed of 17.5 m/s.
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