6.0 4.0 2.0 0.0 O 10 20 30 40 50 60 Displacement (nm) Force (pN)
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Question
A segment of DNA is put in place and stretched. Figure P7.82
shows a graph of the force exerted on the DNA as a function of the displacement
of the stage. Based on this graph, which statement is the best
interpretation of the DNA’s behavior over this range of displacements?
The DNA (a) does not follow Hooke’s law, because its force constant
increases as the force on it increases; (b) follows Hooke’s law and has
a force constant of about 0.1 pN/nm; (c) follows Hooke’s law and
has a force constant of about 10 pN/nm; (d) does not follow Hooke’s
law, because its force constant decreases as the force on it increases.
Transcribed Image Text:6.0
4.0
2.0
0.0
O 10 20 30 40 50 60
Displacement (nm)
Force (pN)
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