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A fluid-expansion thermometer uses liquid Freon (C = 0.22 Btu/lbm · ?F, ρ = 85.2 lbm/ft3) enclosed in a 0.25-in-ID copper (C = 0.092, ρ = 560) cylinder with a wall thickness of 0.032 in. The thermometer is exposed to a cross flow of air at 400?F, 15 psia, and 20 ft/s. Estimate the time constant for such a thermometer. Neglect all effects of the capillary tube. Repeat for a crossflow of liquid water at 180?F and 20 ft/s. Recalculate the time constant for both of these situations for a stainless-steel bulb (C = 0.11, ρ = 490).
When X exceeds some critical distance the slider will "lock" and no longer move regardless of the force applied. If the coefficient of friction for the slider bearing is 0.1, what is the critical value for X in inches
A column is packed with sedimentary material with K = 8.2 x 10-6 m/s. The head at the inlet of the column is 1.99 m. The head at the outlet of the column is 1.87 m. The column is 1.25 m long. What is the volumetric flux through the column?
Compare the three-decimal-place values of the two approximations at x=(1/2) with the value y(1/2) of the actual solution . then do the same for PART B: y'=-2xy , y(0)=2 ; y(x)=2e^(-x^2)
Brine flood in a 1.9-in-long and 1.5-in-diameter core plug from the North Sea resulted in a stabilized pressure drop of 46.05 psi. The flood was carried out at 0.05 mL/min with brine viscosity of 0.443 cP. Determine the absolute permeability of this ..
a force is specified by the vector F=160i+80j-120k N.calculate the angles made by F with the postive x y and z axes.
Assuming the average cooling season to be 120 days and the cost of oil to be $20/barrel, determine how much money would be saved per year.
An observer standing on a beach can just see the top of a lighthouse 15 miles away. The eye height of the observer abouve sea level is 5.7 feet. what is the height of the lighthouse above sea level? Show your work.
The 30-N uniform rod has length of l=1m. If s=1.5m determine the distance h of placement at the end A along the smooth wall for equilibrium.
Which type of foundation provide in laterite soil based upon two storey residential building.
Exhaust gas from a chemical process flows at a rate of 8,000 actual cubic feet per minute (acfm) from point A at 250°F and 1 atm pressure. It flows through a circular duct to a fan
A bridge having a horizontal top cord is span between tow piers Aand B having an arbitrary height. It is required that apin-connected truss be used, consisting of steel members boltedtogether to steel gusset plates. The end supports are assumed to be..
The bracket ABC can be supported in the eight different ways shown. All connections consist of smooth pins,rollers, or short links. For each case, answer the questions listed in Prob.4.59,and, whenever possible
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