Engineering, 16.03.2020 18:55, bibi43232
In an IR detector, the sensor housing is held at 80 K by a mechanical cooler. The sensor is mounted to a frame that runs at 200 K by four thin walled hollow tubes that are 5.08 cm long by 1.27 cm outer diameter. The total heat leak through the four tubes into the detector has to be kept at less than 200 mW. Assuming G-10 (0.5 W/m-k) is used, find the wall thickness for the tube required to meet the heat leak condition. What if 6061-T6 (167.1 W/m-k) aluminum is used instead
Answers: 2
Engineering, 04.07.2019 18:10, niicoleassssssf
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10, samanthabutryn
Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan
Answers: 3
In an IR detector, the sensor housing is held at 80 K by a mechanical cooler. The sensor is mounted...
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