Asingle crystal of a metal that has the fcc crystal structure is oriented such that a tensile stress is applied in the [102] direction. if slip occurs on a (111) plane and in a [ioij direction, compute the stress at which the crystal yields if its critical resolved shear stress is 3.42 mpa.

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]