**************A = area of ONE FACE of the object that's changing
**************DELTA L is a lie!! DELTA L is really just the FINAL L, L is ORIGINAL L
ex: Box's 0.5 x 0.5 x 0.5 dimensions would have (A) value of 0.5 x 0.5 = 0.25
exam: Young's Modulus (E) is in units of Pa (Pascal, unit of PRESSURE)!!
3 Types of Stresses:
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