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1. In a certain metal there are 6.4 × 1028 conduction electrons per cubic meter. Assuming that the fermion gas model is correct, what is the energy of the Fermi surface, in eV?
2. Consider a system of conduction electrons with εf = 8 eV. How much larger is their internal energy at room temperature (295 K) than at absolute zero?
Determine an expression for the flowrate passing between the plates (for a unit width). Express your answer in terms of b and U.
Find the width (in the x-direction) of the Rankine oval created by the flow, and the pressure difference between a point at infinite distance upstream and the point of coordinates (1,1).
The outer surface of an iron alloy is to be hardened by increasing its carbon content. The carbon is to be supplied from an external carbon-rich atmosphere, which is maintained at an elevated temperature. A diffusion heat treatment at 871°C for 12 mi..
What is the maximum allowable power if the chip is flush mounted in a substrate that provides for an unheated starting length of 20 mm?
Otherwise, there are no losses at all. Suppose that the outside temperature is freezing and the indoor temperature is kept at 17 °C.
Explain the difference between rotor speed and rotor frequency. For s = -0.01 and a rotor speed of 1740 rpm, what is the rotor frequency for a 60 Hz induction generator?
a well-insulated turbine operating at steady state with seam enters at 3 mpa 400degc with a volumetric flow rate of 85
Find the general solution x(t) for the following differential equation x'(t)=t^3/3. Find the particular solution x(t) for the following differential equation x'(t)=t^3/3 with initial condition x(t=1)=2.
A rigid wall, insulated container is divided into two regions by a removable wall. One region contains 0.1 lbm of CO at 100F, while the other region contains 0.2 lbm of CO at 150?F. A stirrer is inserted into the container and when the wall between t..
State the definition of the Z transform.
a tensile member of aluminum alloy 2024 - 0 had an original cross - sectional area of 4. 0 square inches. if the strain
steam enters a nozzle operating at steady state at 20 bar 280oc with a velocity of 80 ms. the exit pressure and
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