Question

Part A One technique for making images of surfaces at the as a mass on a spring,what is the mass necessary to achieve the desired resonant frequency when the ip is nanometer scale Including mebranes and biomolecues dynamic atomic force miarescopy In this tecu a sal ip is atached to a cantlev,whih a Rexible,ectangula slab supported at one end le a diving board the canteve ibrates so the ip moves op and down n simple haronc motion In one operating made the ronant requengy for canlever with force constant k-1000 N/m is 100 kH As the oting Sp is brough enanomelers of interacting with the surface? O 10 ng 25 g the suface of a sample (as shown in (Figure ) xperences an afractive force om the surface For an force F.?-the sample surface erertson he tip vain where d is the effecive force constnt for tis oce Th efoece on the to is therelote ut and the reque the surface Mearoments of the frequency as the p of he nformation about the sample Figure Sample sürface Ti
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Answer 1