Question

10 a)

When used at room temperature, the stiffness (or E) of a sample of polypropylene subjected to a constant load (Tg--5C) decrea

b)

Which is likely to have a higher electrical conductivity? a) Pure Cu b) plastically deformed Pure Cu a) Pure Cu Ob) plastical

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Answer #1

Solution

Part a

False

material is subjected to a constant load, it deforms continuously with time so stiffness increases

Part b

Option a is correct

Pure copper-based alloys have high strength and good electrical conductivity.

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