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OpenStudy (this):
helpppp pllzzz which item below is an insulation? a, stainless steel fork b, aluminum pie pan c, brass nail d, plastic foam cup
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OpenStudy (anonymous):
The pie pan because it is retaining some heat whil at the same time giving it off.
OpenStudy (ksaimouli):
d
OpenStudy (anonymous):
insulation against what?
OpenStudy (shane_b):
The plastic foam cup is the best insulator in the list...that's why we use them to hold hot/cold liquids. The others in the list are all metals which are typically categorized as conductors...not insulators.
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