5.39 A chemical adsorbs onto the surface of a rectangular silicon beam measuring 200 μm long and 1 µm thick, with an elastic modulus of 100 GPa and a Poisson's ratio of 0.22. This alters the surface stress by 2 x 10 N/m. a. By how much does the beam deflect? b. Using an AFM with 100 times less vertical resolution than the best demon- strated, would you be able to detect such a deflection? c. If the deflected beam formed part of the curved surface of a large virtual sphere, what would be the sphere's diameter?

5.39 A chemical adsorbs onto the surface of a rectangular silicon beam measuring 200 μm long and 1 µm thick, with an elastic modulus of 100 GPa and a Poisson's ratio of 0.22. This alters the surface stress by 2 x 10 N/m. a. By how much does the beam deflect? b. Using an AFM with 100 times less vertical resolution than the best demon- strated, would you be able to detect such a deflection? c. If the deflected beam formed part of the curved surface of a large virtual sphere, what would be the sphere's diameter?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Types of loading

In mechanical terminology, the term load indicates that external force/weight, either constant or variable, acts on a mechanical member/structure. The weight of an object of a specific material is also an external load, and the external force that works on a structure comes under the categories of loading. The external load generates its effects as stress and strain in the structure.

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Please help, with all thank you!!

5.39 A chemical adsorbs onto the surface of a rectangular silicon beam measuring
200 µm long and 1 um thick, with an elastic modulus of 100 GPa and a Poisson's
ratio of 0.22. This alters the surface stress by 2 x 10 N/m.
a. By how much does the beam deflect?
b. Using an AFM with 100 times less vertical resolution than the best demon-
strated, would you be able to detect such a deflection?
c. If the deflected beam formed part of the curved surface of a large virtual
sphere, what would be the sphere's diameter?

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