Please help me with these two questions.

.( @Review Question As we've discussed, one model of material deformation links stress and strain [ by a material constant called a modulus. For a material under lengthwase' I stress (tension or compression), this is Young's modulus (Y) and the relation I may be stated as: _ stress E Y _' strain I The data below was collected for five different materials using tools which allowed for the direct measurement of the stress and strain. By applying the model above. rank the Young's modulus for each of these ve materials from largest to smallest. - mo .5... _ 2... 0 Material 1. Material 5. Material 3. Material 4. Material 2 0 Material 2. Material 5, Material 3. Material 1. Material 4 0 Material 4. Material 3. Material 2. Material 5. Material '1 0 Material 3. Material 1. Material 5. Material 2. Material 4 A u,a...:.-.I K Malarial 9 Material 3. Material 1. Material 4 For this lab activity, we used materials that deformed relatively easily under a force. But many materials are very rigid unless acted on by a large force (or stress). What methods of investigation might you use to investigate the Young's moduli of such materials? Select all that apply. [:1 Apply signicantly larger forces so that deformation is more easily measured with devices like a meter stick or measuring tape. [:1 Find a material that feels very similar to the touch but is more easily deformed. Determine the modulus of this other material and use it to estimate the modulus for the material we want. C] Use more precise measuring tools to detect extremely small deformations of rigid materials. D Create a sample of the material that has a very large cross-sectional area so that deformations are more easily induced by a given force. C] Create a sample of the material that is very short to increase the strain response of the material to deformation. CI Create a sample of the material that is very long to increase the strain response of the material to deformation. ...-_-- - . ....-. . .._.__.__._