Question: Before heading out on her big date, Ling stands in front of the bathroom mirror brushing her 0.25-m-long hair with a force of 2.0

Before heading out on her big date, Ling stands in front of

Before heading out on her big date, Ling stands in front of the bathroom mirror brushing her 0.25-m-long hair with a force of 2.0 N. If the cross- sectional area of a piece of hair is 1.0 x 10-7 m, by how much does the hair stretch when it is brushed? (Yhair = 2.0 109 N)

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