Engineering, 23.08.2021 21:00 fazegaze89
Which of the following would you expect to be elastomers and which thermosetting
polymers at room temperature? Justify your choices. (Note that some of these are neither
elastomers or thermosets and some are both.)
a) Linear and partially amorphous poly(vinyl chloride)
b) Lightly crosslinked polyisoproprene having a glass-transition temperature
of -60 o C.
c) Heavily corsslinked polyisoproprene having a glass transition temperature
of 50 o C
d) Phenol-formaldehyde (it is described in the book – look for it)
e) Linear and highly crystalline polyethylene
Answers: 1
Engineering, 04.07.2019 18:10
Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)
Answers: 1
Engineering, 04.07.2019 18:10
Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.
Answers: 3
Engineering, 04.07.2019 18:10
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
Engineering, 04.07.2019 18:20
Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms
Answers: 2
Which of the following would you expect to be elastomers and which thermosetting
polymers at room...
Mathematics, 16.07.2019 12:00
Mathematics, 16.07.2019 12:00
World Languages, 16.07.2019 12:00
Mathematics, 16.07.2019 12:00
Social Studies, 16.07.2019 12:00
Social Studies, 16.07.2019 12:00