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Map of North Carolina
Description: This demo will show everyone in class where the center of mass of North Carolina is (so long as you assume that the state is perfectly flat, and consists of completely uniform material throughout)!
Instructions: Hang map of NC on peg through desired hole. Hang plumb bob in front. Mark the position of the plumb line with a marker on the sheet of paper attached to the back of the state. Change the position of the peg until you have gone all the way around the state. Then show the class the results
Parts: map of NC
clamp with a nail (the peg the state hangs from)
a clean sheet of paper taped to the back for marking
Setup Time: 5 min
Quant. in Demo Room: 1
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