(a) Define and relate the stress and strain in an object.?

(a) Define and relate the stress and strain in an object.


(b) About how large a force is required to stretch a 2.0cm diameter steel rod by 0.01 percent? The Young’s modulus for steel is 20*10^10 N/m^2.


(c) What is the Young’s modulus? Bulk modulus? Shear modulus?


(d) A cube of gelatin 3cm on edge sitting on a plate is subject to a force of 0.20 N parallel to its upper surface. The force pulls the upper face 0.15cm sideways. Find the shear modulus for the gelatin.

(a) Define and relate the stress and strain in an object.?
Check this out:





http://en.wikipedia.org/wiki/Stress_%28p...


http://en.wikipedia.org/wiki/Strain_%28m...





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