Show in two dimensions that the maximum shear stress τm = {[(σxx − σyy)/2]2 +
(τxy)2}(1/2) is invariant under a rotation of the reference axes and is equal to one-half
the difference of the major and minor principal stresses in the considered plane.
Sample Text: Please assist me with this math problem. I am having difficulties. Thank You!?
Homers Pizza is advertising the following deal:3 pizzas, up to 4 toppings each, 10 toppings to choose from 3 soft drinks, 5 varieties to choose from total cost $24.99. The pizza toppings must be unique double, triple, or quadruple toppings are not allowed.
How many integer solutions are there to the equation
x1 + x2 + 2x3 + x4 + x5 = 72
when
(a) xi 0,i = 1,...,5
(b) xi 1,i = 1,...,5
Question description should have minimum of 50 characters