The homogeneous plate ABCD is subjected to a biaxial loading asshown. It is known that sz 5 s0 and that the change in length ofthe plate in the x direction must be zero, that is, Px 5 0. Denotingby E the modulus of elasticity and by n Poissons ratio, determine(a) the required magnitude of sx, (b) the ratio s0yPz.Fig. P2.74
CHD 2220 Chapter 12: Cognitive Development in Middle Childhood -Piaget advances of thought; seriation -Characteristics of high quality schools -Ethnicities in School -Multigrade Education -ADHD -Learning Disabilities -Attention -Internal/External Motivations -Memory -Metacognition -IQ, traditional, triarchic, multiple (nature/nuture) -Dynamic Assessment -Whole language vs. Phonics; math & reading -Inclusion -Computers -Giftedness; Mental Retardation/Organic rd 1. Piaget’s Theory- The Concrete Operational Stage (3 stage): affects kids 7-12 yrs old. Thought becomes more logical (taking multiple aspects of a situation into account; b