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A certain copper wire has a resistance of 80.0 . At what point along its length must the wire be cut so that the resistance of one piece is 4.0 times...

A certain copper wire has a resistance of 80.0 . At what point along its length must the wire be cut so that the resistance of one piece is 4.0 times the resistance of the other?
What is the resistance of each piece?
larger piece


smaller piece

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