Engineering, 18.07.2019 01:20 didirose
Briefly describe how the molecular weight and percent crystallanity of a polymer influence the property of polymers, make comparisons of thermoplastic polymers, thermosetting polymers, and elastomers (a) on the basis of mechanical characteristics, (b) effect of temperature on mechanical properties, and (c) according to possible molecular structures.
Answers: 3
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 18:20
Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false
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Engineering, 04.07.2019 18:20
What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.
Answers: 3
Engineering, 04.07.2019 18:20
Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?
Answers: 1
Briefly describe how the molecular weight and percent crystallanity of a polymer influence the prope...
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