TEST BANK FOR Elasticity By J. R. Barber
Harvard University
All 1 results
Sort by
-
Exam (elaborations) TEST BANK FOR Elasticity By J. R. Barber (Solution Manual)
- Exam (elaborations) • 217 pages • 2021
-
- $15.49
- + learn more
Exam (elaborations) TEST BANK FOR Elasticity By J. R. Barber (Solution Manual) 
CHAPTER 1 
1.1. Show that 
(i) 
∂xi 
∂xj 
= δij and (ii) R = √xixi , 
where R = |R| is the distance from the origin. Hence find ∂R/∂xj in index 
notation. Confirm your result by finding ∂R/∂x in x, y, z notation. 
For an orthogonal co¨ordinate system, 
∂x 
∂y 
= 0 
(this is what is meant by orthogonality) and 
∂x 
∂x 
= 1 . 
In index notation, these results can be combined as 
∂xi 
∂xj ...
Fear of missing out? Then don’t!
Do you wonder why so many students wear nice clothes, have money to spare and enjoy tons of free time? Well, they sell on Stuvia! Imagine your study notes being downloaded a dozen times for $15 each. Every. Single. Day. Discover all about earning on Stuvia