Engineering, 03.04.2021 17:00, sjkmxm4090
A large chain retailer purchases a certain kind of electronic device from a manu-
facturer. The manufacturer indicates that the defective rate of the device is 3%.
(a) The inspector randomly picks 20 items from a shipment. What is the proba-
bility that there will be at least one defective item among these 20?
(b) Suppose that the retailer receives 10 shipments in a month and the inspector
randomly tests 20 devices per shipment. What is the probability that there
will be exactly 3 shipments each containing at least one defective device among
the 20 that are selected and tested from the shipment?
Answers: 3
Engineering, 03.07.2019 15:10, EmilySerna
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, 03.07.2019 15:10, breannaasmith1122
Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.
Answers: 1
A large chain retailer purchases a certain kind of electronic device from a manu-
facturer. The man...
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