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Consider the resistivity ρ of a material, given in the units Ω · m. If the wire diameter is 1 mil (or 1/1000 in.), the wire area would be 1 circular mil (or cmil). Furthermore, if the wire length is 1 ft, the units of resistivity would be Ω · cmil/ft. Determine the factor by which the resistivity given in Ω · m should be multiplied by in order to obtain the resistivity in Ω · cmil/ft.
for the meter-in flow control valve system the following data are givendesired cylinder speed 10 inseccylinder piston
consider a plane wall 100mm thick and of thermal conductivity 100 w/m .k seady state conditions are known to exist with T1 = 400 k T2= 600 K. determine the heat flux and the temperature gradient off the coordinate systems.
Under the new system the excess power requirements will be met from the grid. Assuming that the cost of electricity is four times that of natural gas, calculate the percentage suing in fuel cost in changing to the new system. 140.4%)
the gravitational force exerted on a baseball is 2.12 n down. a pitcher throws the ball horizontally with velocity 12.5
a chemically reactive system contains the following species in the gas phase nh3 no no2 o2 and h2o. determine a
The elevation of the surface of the lake is 928.75, and the invert of the orifice is 905.25. When the orifice is opened, what discharge in cfs flows through into the stream below the dam?
Calculate the electrical conductivity of this material, assuming electron and hole mo- bilities of 0.1 and 0.05 m2/V-s, respectively.
two block masses on smooth wheels m1 and m2 are connected to the wall through spring having a spring constant of k2
Consider an adiabatic mixing chamber operating at steady state into which steam enters with quality of 0.9. Water enters through a separate inlet at 300C. At the exit the temperature is 1500C and mass flow rate is 2 kg/s. The pressure in the mixing c..
I need to be able to derive the velocity profile from the navier-stocks equations. Basically from scratch. Problem 4.36 in the fluid mechanics seventh edition Frank M. White In need to get derived down to the Differential form and find the constant o..
Superimpose a uniform ?ow parallel to the x-axis of 10 m=s and a source at the origin of strength q ¼ 10p m2/s. (a) Write the velocity potential f and stream function c.
A turbine salesman makes the following claim for one of his products: Steam enters a steady-flow adiabatic turbine at 4 MPa, 600 °C with negligible velocity and exhausts at 200 kPa with a velocity of 180 m/s
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