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BIO “SEEING” SURFACES AT THE NANOSCALE. One technique for making images of surfaces at the nanometer scale, including membranes and
14.94 If we model the vibrating system as a mass on a spring, what is the mass necessary to achieve the desired resonant frequency when the tip is not interacting with the surface? (a) 25 ng; (b) 100 ng; (c) 2.5 μg; (d) 100 μg.
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