Engineering, 23.09.2019 17:20 aaliyahrice02
It is to think in terms of two basic kinds of change: piecemeal and systemic. piecemeal change leaves the structure of a system unchanged. it often involves finding better ways to meet the same needs, such as using an analogy to your students learn the science concepts you taught in an otherwise similar manner last year. in contrast, systemic change entails modifying the structure of a system, usually in response to new needs. references: reigeluth, c. m. (1999). what is instructional-design theory and how is it changing?
Answers: 3
Engineering, 04.07.2019 18:10
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
Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.
Answers: 2
Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
Answers: 3
Engineering, 04.07.2019 18:20
Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives
Answers: 2
It is to think in terms of two basic kinds of change: piecemeal and systemic. piecemeal change lea...
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