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Air (an ideal gas) contained in a rigid, insulated tank fitted with a paddle wheel, initially at 27 degrees celcius, 2 bar, and a volume of 2 m^3, is stirred until its temperature is 227 degrees celcius. For this process, determine the amount of entropy produced (kJ/K) assuming variable specific heats.
a small sphere of reference-grade iron with a specific heat of 447 jkgk and a mass of 0.515 kg is suddenly immersed in
a keg of beer loumlwenbraumlu sg 1.11 has a small pinhole leak in it. the beer sprays vertically into the air to a
Couette Flow Velocity Distribution, Using the log law, determine the velocity distribution for Couette flow between parallel plates a distance h apart, with U = the velocity of the top plate.
Analyse the operational characteristics of the current system / component available in the market and future systems yet to come into production. Analyse the effect of the system on the environment and its sustainability.
air in an internal-combustion engine has 227degc 1000 kpa with a volume of 0.l m3. combustion heats it to 1500 k in a
one pound-mass of air at 10 psia 70 of is contained in a piston-cylinder device. the air is now reversibly compressed
Assume you are given a spherical joint where the ball has a radius of 20 mm and socket has a radius of 22 mm. If the contact load is 50 N, E = 210 GPa, and ν = 0.3, determine (a) the radius of the contact area, (b) the maximum contact pressure.
the plank cde has a mass m15kg and is rest on a small pivot at d. a block a of mass 55 kg is resting on point c. a
water and steam enter an insulated mixing chamber in steady flow. the liquid water enters at 20 0c and 3 bars with a
during a 100 m sprint usain bolt reaches his maximum speed in 2 seconds from rest with constant acceleration. he then
in a laboratory steam is condensed at atmospheric pressure i.e. 212degf on the shell-side of a vertically-oriented
a common aluminum alloy al-2024 contains 4.4 wt. copper 1.5 wt. magnesium and 0.6 wt. manganese. the balance is
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