4- The four wires shown below are made from the same resistive material. Show the highest and lowest resistance wire. Explain your answer. A B 2L 2R C 2L 2R D ------

What type of linkage is in the diagram below?   Group of answer choices β1⟶4β1⟶4 α1⟶4α1⟶4 α1⟶6α1⟶6 β1⟶6

i need the answer quickly

State whether the following statement is ‘True’ or ‘False’. (2 × 10 = 20) Give a brief explanation for each of your answers, as applicable. Alpha-Polonium has a body-centered cubic structure. True    False A dislocation loop must always be a mixed dislocation. True   False Divacancies in any metal are present at much higher concentration than monovacancies. True False Generally, a quenched metal has a higher electrical resistivity than an annealed metal. True False Shockley partials are considered glissile in nature. True  False Wider stacking faults make cross-slip more difficult, that is why cross-slip in brass (Cu-Zn) is more difficult than copper (Cu). True False According to Hume-Rothery’s rule, the solvent and solute in a substitutional solid solution must have 5% size difference. Pearson symbol of copper cP2. True   False Frank partial is a sessile dislocation. True   False Edge dislocations can cross-slip to move to other slip planes. True   False

Aluminum has a density of 2.7 g/cm3. Suppose you would like to produce a composite material based on aluminum having a density of 1.5 g/cm3. Design a material that would have this density. Would introducing bead of polyethylene, with a density of 0.95 g/cm3, into the aluminum be a likely possibility? Explain.

What aspect of thermoset polymers can be controlled to increase strength?

Show complete solution, and units involved. Express the final answer up to 3 decimal places

Why are resistors important in an electrical circuit? ) Resistors only allow a current to flow in one direction and can change alternating currents to direct currents. Resistors are electrical components that help to control the flow of the current in a circuit; they restrict the flow of electrons. ) Resistors consist of two pieces of conducting material separated by an insulating material called a dielectric. They are often used as timing devices, but they can transform electrical currents in other ways, too. ) Resistors can switch tiny electric currents on and off or amplify them.

Which of the statement/s below is/are inaccurate? a. Crosslinked polymers are stronger and have lower elongation at break than branched and network polymers O b. Geometrical isomers include syndiotactic, atactic and isotactic types and only differ by their spatial repetition of side group positions. O c. Elastomers typically have higher elongation at break values than brittle and plastic polymers and they don't experience necking which plastic polymers do experience O d. The presence of bulky side groups and double bonds decreases the freedom of the polymer chain to rotate and change it's spatial configuration The higher the percent crystallinity the higher the strength and density, and the lower the permeability of the polymer e.

Grey cast irons meetA. C is in the form of graphite. They are easy to machine at various hardness levels. They have good resistance to wear and fretting. Good vibration damping capacity.B. C is in the form of cementite.C. More difficult to machine than white cast irons.D. None of the above.