Week 1 Chapter 43 Quiz _ 117

Solve plz fast plzz

2. Materials Properties and Bonding a. What is the grain boundary? Grain boundary density increase will decrease the strength values, is this correct? What is the difference between a low angle grain boundary and a high angle grain boundary? Draw pictures. b. If a material has equiaxed grains, would the materials properties be isotropic or anisotropic? c. A material is made up of a mixture of large grains and very small grains. Describe what happens when the material is heated at 90% of its' melting point for a long time? You can use 2 pictures or words. A material with a large bond strength generally has a high melting point: True or False? d. Do vacancies generally increase or decrease the resistivity of a metal? e. Arrange these crystal structures in order of APF (smallest to largest): всс, НСР, SC, FCC

Which of the method is relavent for both thermosetting and thermoplastic materials? O a. Injection moulding O b. Extrusion moulding O c. Blow moulding O d. Compression moulding

i need the answer quickly

The highest chemical reactivity rating in the hazmat diamond means that the chemical is _____________.     flammable     explosive     gaseous     toxic

Adsorption from Solution on the solid surface . Steps by steps explanation mathematical etf all need

final answer of both

Hello! I asked this question and it was rejected. Just for clarification, this is not a graded test. I found this in a document in an online course and wanted to check if my answers were correct or not.

Following sodium fusion and fracture of the test tube into 15 mL of deionized water (in a 50 mL beaker), the next step is to ________.     Add phenolphthalein indicator and perform a titration     Filter the solution to remove insoluble material and glass fragments     Perform the chemical test for formation of lead sulfide (PbS)     Perform any of the three chemical tests for sulfur, nitrogen, or a halogen     Discard the solution into the sink and clean the beaker

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A type of cast iron containing 3-4 wt% C and 1-3 wt% Si. a. Compact graphite   b. Malleable cast iron   c. Grey Cast iron   d. White cast iron

True or False 1. Magnetite is not susceptible to residual concentration. 2.Copper is susceptible to residual concentration.

The ingredients in the lamina may be .......... or ..... Materials. Intraply is ..... ..... .... • One of laminates composites application is • The laminate composites known as their properties do not vary with direction

What would be the effect of Column A to Column B? Determine if Column B will increase, decrease, or no effect.

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Thermoplastics is an exampe of Metal matrix composites O Polymer matrix composites O Carbon and Graphic matrix composites D Ceramic matrix composites

Compute the radius r of an impurity atom that will fit into an FCC (100) plane (This is called octahedral site), in terms of the atomic radius R of the host atom (without introducing lattice strains). Hint: Drawing the atoms in this plane including the interstitial impurity would help you see the geometry.

As the temperature of a tempering process of martensitic carbon steels increases, the hardness gradually decreases. At the atomic scale, what could be the cause?A. Diffusion effect of C atoms.B. Diffusion effect of water.C. Magnetization effect of Fe.D. Electron loss of Fe.

show-all-working-explaining-detailly-each-step Answer should be typewritten using a computer keyboard.

My Home * OWLV2 | Online teaching and lea x a cvg.cengagenów.com/ilm/takeAssignment/takeCXPCompliantActivity.do?locator=assignment-take Sa 9- CHEMICAL QUANTITIES Study Pr O Previous Page 8 of 16 Next O Subni Silicon carbide, SiC, is one of the hardest materials known. Surpassed in hardness only by diamond, it is sometimes known commercially as carborundum. Silicon carbide is used primarily as an abrasive for sandpaper and is manufactured by heating common sand (silicon dioxide, SiO2) with carbon in a furnace. SiO2 (s) + C(s) + CO(g) + SiC(s) What mass of silicon carbide should result when 4.3 kg of pure sand is heated with an excess of carbon? Mass = kg Save and Er Cengage Learning | Cengage Technical Support https://als-anp.cengage.info/als-asp/take P Type here to search 1243 PM 4/24/2021

c. The table below shows characteristics of two dopants added in Czochralski growth processes of crystalline silicon. In both, a mass M of the dopant was added to 1 kg of silicon. Growth 01 Silicon mass Dopant mass Dopant atomic weight (molar mass) Distribution coefficient (ka) 1 kg M 74.9 g/mol 0.3 1.0 x 10¹5 cm- Growth 02 1 kg M 31 g/mol 0.36 Doping concentration 22 As shown in the table above, we got doping of 1.0 x 10¹5 cm3 for the first process (Growth 01), what is the doping concentration that we will get in the second process (Growth 02) ? A) 0.5 x 10¹5 cm-3 B) 2.0 x 10¹5 cm-³ Answer C) 2.9 x 10¹5 cm-3D) 3.4 x 10¹4 cm-3

4 and 6 only pls

Please answer 6,7,8 it's multiple choice

Give me all three right answers with short explanation otherwise leave it. Note: Kindly answer all otherwise leave it