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A large Nichrome V slab, 0.2 m thick, has two parallel 1 cm I.D. holes drilled through it. Their centers are 8 cm apart. One carries liquid CO2 at 1.2 m/s from a -13?C reservoir below. The other carries methanol at 1.9 m/s from a 47?C reservoir above.
Take account of the intervening Nichrome and compute the heat transfer. Need we worry about the Co2 being warmed up by the methanol?
he force R is the resultant of the forces P1. P2, and P3 acting on the rectangular plate. Find P1 and P2 if R= 40kN and P3 = 20kN.
a 4-m x 5-m x 6-m room is to be heated by a baseboard resistance heater. it is desired that the resistance heater be
What is a 90 percent confidence interval for the standard deviation of the thickness of a washer produced by this procedure?
air enters a compressor at 179 kpa and 290 k and exits at a temperature of 500.9 k. determine the power kw for the
Using the Internet,determine the percent contributions of these types of electricity generation to the U.S. total. For each of the four types, determine at least three significant environmental considerations associated with it and how such enviro..
Subject a piece of steel to a case hardening process in which carbon is forced by diffusion through a layer on the surface of the piece. For this purpose, the piece of steel will be placed in a carbon-rich atmosphere in a special furnace.
isooctane is supplied to a four-cylinder spark-ignition engine at 2gs. calculate the air flow rate for stoichiometric
consider a reheat cycle with steam leaving the boiler and entering the turbine at 4 mpa and 400 c . after expanded in
why do we not take into account the normal forces or the frictional forces acting on the jumper when determining the
a simple wheatstone bridge as shown in fig. 7.10 is used to determine accurately the value of an unknown resistance r1
An alloy contains 105.0 kg of iron, 0.2 kg of carbon, and 1.0 kg of chromium. Calculate the alloy composition in weight percent. Calculate the alloy composition in atom percent.
the compression ration in an air-standard otto cycle is 8. at the begining of the compression stroke the pressure is
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