Learning Task No. 3: Read the properties of materials below. Identify the property of materials described in each sentence. 1. The physical property of metals that defines their ability to be hammered, pressed, or rolled into thin sheets without breaking. 2. Ability of the materials to conduct electricity. 3. This refers to the ability of the material to withstand wear, pressure or damage. 4. The physical property of a material associated with the ability to be hammered thin or stretched into wire without breaking. 5. It is the measure of the resistance to localized plastic deformation induced by either mechanical indentation.
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- Sentence: "The physical property of metals that defines their ability to be hammered, pressed, or rolled into thin sheets without breaking." - Property: Malleability Step 2: Read the second sentence and identify the property of materials described. - Sentence: Show more…
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The weight is suspended from steel and aluminum wires, each having the same initial length of $3 \mathrm{m}$ and crosssectional area of $4 \mathrm{mm}^{2}$. If the materials can be assumed to be elastic perfectly plastic, with $\left(\sigma_{y}\right)_{4}=120 \mathrm{MPa}$ and $\left(\sigma_{Y}\right)_{\mathrm{al}}=70 \mathrm{MPa},$ determine the force in each wire if the weight is (a) $600 \mathrm{N}$ and (b) $720 \mathrm{N} . E_{\mathrm{al}}=70 \mathrm{GPa}, E_{\mathrm{sa}}=200 \mathrm{GPa}$
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