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One of the inspectors in the quality control department has frequently used the Brinell and Rockwell hardness tests, for which equipment is available in the company. He claims that the Rockwell hardness test is based on the same principle as the Brinell test, which is that hardness is measured as the applied load divided by the area of the impression made by as indentor. is he correct? If not, how is the Rockwell test different?
gusset plate Determine the resultant of the three forces tha must be carried by the gusset plate. 30 degrees off of the wall and F1, F1 = 10k, F2 = 12k, F3 = 18k
what initial mass of 210 po is needed in a space rtg with a 19 thermal to electric conversion efficiency that is to
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two particles a and b start from rest at the origin s0 and move along a straight line such that aa8t-4 fts2 and
two solid cylinders rods AB and BC are welded together at B and loaded. determine the magnitude of the force P for which the tensile stress in rod AB is twice the magnitude of the compressive stress in rod BC?
a two-cylinder 250 cm3 displacement motorcycle engine that operates on an ideal otto cycle at 4500 rpm. the compression
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A household refrigerator with a coefficient of performance of 2.4 removes energy from the refrigerated space at a rate of 600 Btu/h. Evaluating electricity at , determine the cost of electricity n a month when the refrigerator operates for 360 hou..
consider 100 kg of steam initially at 20 bar and 240 degrees c as the system. determine the change in exergy in kj for
heat amp mass transfer incropera 6th ed prob. 5.68 asphalt pavement may achieve temperatures as high as 50 degree
the coefficient of restitution is 0.9 between the two 60-mm-diameter billiard balls a and b. ball a is moving in the
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