Engineering, 16.04.2020 21:09 Nprz84
Check My Work (1 remaining) A tungsten matrix with 32 porosity is infiltrated with silver. Assuming that the pores are interconnected, what is the density of the composite before and after infiltration with silver? The density of pure tungsten is 19.25 and that of pure silver is 10.49 .
Answers: 1
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 18:10
Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
Answers: 1
Engineering, 04.07.2019 18:10
The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false
Answers: 1
Engineering, 04.07.2019 18:10
Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
Answers: 2
Check My Work (1 remaining) A tungsten matrix with 32 porosity is infiltrated with silver. Assuming...
Physics, 26.09.2019 15:30
Biology, 26.09.2019 15:30
Social Studies, 26.09.2019 15:30
English, 26.09.2019 15:30
Mathematics, 26.09.2019 15:30
English, 26.09.2019 15:30
Biology, 26.09.2019 15:30
Advanced Placement (AP), 26.09.2019 15:30
Biology, 26.09.2019 15:30
Biology, 26.09.2019 15:30
English, 26.09.2019 15:30
History, 26.09.2019 15:30