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Calculate the number of vacancies per cubic meter in gold at 900°C. The energy for vacancy formation is 0.98 eV/atom. Furthermore, the density and atomic weight for Au are 18.63 g/cm3 (at 900°C) and 196.9 g/mol, respectively.
A piston-cylinder device initially contains 50L of liquid water at 40 degrees C and 200kPa. Heat is transferred to the water at constant pressure until entire liquid is vaporized.
Assuming the plant operates on the ideal vapor-compression cycle using refrigerant 134-a between the pressure limits of 120 and 700 kPa, determine
Thin walled box beam with end load at an angle. A box beam made from an extruded aluminium ally having 5 414 mm wall thickness is loaded by an inclined force P=100 N
Find the final state inside the tank, A tank contains 2kg of nitrogen at 10K with a quality of 50%.Through a volume flow meter and valve, 0.5kg is now removed while the temperature remains constant.
A spur gear has 48 teeth with a diametral pitch of 8 and a pressure angle of 20 deg. The face width is 0.75 inches. If the gear is transmitting 25 HP at 250 rpm
Complex loading (bending and compression), A steel chimney is 28m high, 1.4m external diameter, and 20mm thick. It is rigidly fixed at the base and is acted upon by a horizontal wind pressure of intensity 1.
Sketch the fully annotated velocity triangles for a Parsons turbine stage. Use your sketch to show that the specific work produced per stage is given as w_stage = (C_b)^2 [1 + 2(f/C_b)(cot(B_1))].
What would have been the advantages or disadvantages of Tata collaborating with another automaker on the Tata? Who might it have collaborated with?
Find the capacity of a cylindrical tank that is 250 feet in diameter and 30 feet high? In the above problem, what is the capacity if the tank is 75% full, and what is the capacity in gallons?
Calculate the steady state excess electron and hole concentrations as a function of distance into the semiconductor.
Classify the sections of the components in automatic control system.
The maximum flow past a circular cylinder is 2 X the Up stream velocity. The max velocity occurs at the center line of the top of the cylinder.
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