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air is compressed in cylinder such that the volume changes from 0.2 to 0.02 m^3. the pressure at the beginning of the process is 200 kpa. calculate the work if
(a) the pressure is constant, and
(b), the temperature is constant at 50
(c). sketch each process on a p-v diagram
Describe in words what the various components of the hierarchical model represent in terms of the observed and expected disease rates.
A centrifugal fan equipped with damper control has the damper wide open at full flow. The damper is partly closed to reduce flow to 80 percent of full load. Estimate the changes, in percent, in static pressure, and the horsepower requirement.
as a heat transfer specialist for a large company in the mid-west you have been asked to determine the power needed to
Determine the magnitude of the couple that must be applied to the sleeve in order to draw the rods closer together.
Water at 350 psia and 800oF enters a nozzle whose inlet are is 0.4 ft2. The flow rate of steam is 20 lbm/s. Steam leaves at 150 psia and at 825 ft/s. Heat losses from the nozzle per is 3.2 BTU/lbm. What is the inlet velocity and the exit temperature.
a projectile is launched from point a with initial speed v0 and makes an angle ?n with the horizontal. it hits the
You are a thermal design engineer and plan to design cooling solution for a computer chip. As a basic design, a chip (K_c=50W/m-K) is mounted in a dielectric substrate (K_s=5.0 W/m-k) and one surgace of the system is convectively cooled, while the re..
How long wi1l it take for the mid plane temperature to achieve 50% of its maximum possible temperature reduction?
A counter flow cooling tower cools 2000 gal/min water from 104 F to 85 F with 210,000 ft^3/min of air at 90 F Dry bulb Temperature and 76 F WBT . The Mass transfer coefficient -surface area product is hA= 123lbm/hr ft^3. Air mass flow rate per unit c..
Find the concentration of aluminum in a solution that exhibits a rate of 0.76 absorbance units per second under the same experimental conditions.
Obtain the equation representing the displacement of the mass at time t > 0 when M = 50 kg, B = 180 N s m-1 and
the 10-kg sphere c is released from rest when theta0 and the tension in the spring is 100 n. determine the speed of the
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