Engineering, 07.11.2019 05:31 walkereddie580
Asheet metal manufacturer is making 10-gauge sheet metal, which is supposed to be 3.416 mm thick. one of the pieces of manufacturing equipment was suspected of malfunctioning, so the manufacturer tested a random sample of 100 pieces of steel to make sure the average steel thickness is 3.416 mm. which of the following is a statement of the null hypothesis? the equipment is not working properly. the average average steel thickness is not 3.416 mm. the equipment is working properly. the average average steel thickness is 3.416 mm. the equipment is making the sheet metal too thick. the average average steel thickness is greater than 3.416 mm.
Answers: 2
Engineering, 03.07.2019 14:10, makaylashrout77
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
Engineering, 04.07.2019 18:10, heidiburgos1own6c0
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:10, tjeffers90028
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
Answers: 1
Engineering, 04.07.2019 18:10, lerasteidl
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
Asheet metal manufacturer is making 10-gauge sheet metal, which is supposed to be 3.416 mm thick. on...
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