It is often said that the mechanical properties of metals are mostly due to their free electrons. I'm talking about malleability, ductility and hardness.
So, when they suffer a superconductive transition, I expect a drastic change in their mechanical properties, but I haven't found anything on...
Homework Statement
The tension in the skin of the left ventricle of heart is 4.90 N/m. A cut is made on the left ventricle during surgery. How many stitches must be used to repair the cut? Each stitch will safely support a tension of 0.4 N.
Homework Equations
Surface tension = force/length...
Homework Statement
A copper rod of length l_0 at 0 C is placed on a smooth surface.Now the rod is heated up to 100 C.FIND THE LONGITUDINAL STRAIN DEVELOPED ?
The Attempt at a Solution
What I did :
strain = delta l/ l_0
= l_0 alpha(coefficient of linear expansion) delta T/l_0...
Homework Statement : A cylinder is elongated by 2% of its original length. If Poisson's ratio of its material is 0.3. Calculate the percentage variation in volume.[/B]
Homework Equations
V = πr^2l
η= 0.3= Δl/l/Δr/r[/B]
The Attempt at a Solution
I tried using calculus to differentiate V to...