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Explain the answer in a manner such that someone who did not previously know the answer will now understand the concept down to the microscopic level (i.e., basic bonding and atomic models).
1. Explain how, when cold working a material, it is possible to increase the material's yield such that it exceeds the original (unworked) material's ultimate tensile strength.
hot air enters a rectangular duct 20-cm-wide 25-cm-high and 5-m-long at 100 kpa and 60 c at an average velocity of 5
two kg of saturated liquid water at 1 bar is compressed to 25 bar and 100degc in a water pump. determine the change in
Air in a piston-cylinder assembly is compressed isentropic ally from state 1, where T1 = 35°C, to state 2, where the specific volume is one-fifth of the specific volume at state 1. Applying the ideal gas model with k = 1.4, determine (a) T2, in °C an..
The crystal structure of iron is BCC at temperatures below 912°C and FCC above 912°C. Calculate the weight of one unit cell of iron (a) below 912°C; (b) above 912°C.
a long slab is heated to 100oc on both sides and then exposed to a focused stream of cold air on the top edge - giving
A tank of compressed air is at 40°C and 10 atm. 1 third of the gas is removed for inflating a car tire. The tank is allowed to exchange heat with the surroundings to maintain its temperature at all times. What kind of a process is this? What is the p..
Compute the percentage ionic character of the interatomic bond for each of the following compounds: MgO, GaP, CsF, CdS, and FeO
The particle p moves along a space curve describe by the Cartesian coordinates. Describe the given motion in terms of cylindrical and spherical coordinates by finding explicit equations for the coordinates.
consider a metal that is subjected to cold working by rolling it to a lesser thickness or hammering it. a would you
a pelton wheel is used to produce hydroelectric power. the average radius of the wheel is 1.83 m and the jet velocity
quantify the experiment performed by archimedes to identify the material content of king hieros crown. assume you can
Consider a state of plane stress with principal stresses of 14MPa and -6MPa. The normal stress in the x-direction is 12MPa. Find the remaining stress components in the x-y coordinate system. Draw a complete 2D stress element in the x-y coordinate sys..
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