is an example of a semiconduct material O a. gold O b. silver c. silicon O d. carbon

Q: نقطة واحدة Electrical conductivity of .Ceramics is low because they have a wide electron bands. the…

A: Required : Why is the electrical conductivity of ceramic low ..

Q: Perhaps you have observed magazines which have glossy pages. The usual microscopically rough surface…

A: Yes, it would be easier to read from rough pages because

Q: All unit cell structures have six sides. Can crystals of a solid hay than six sides ? Explain your…

A: All unit cell structures have six sides. Can crystals of a solid hay than six sides ? Explain your…

Q: You put 100g of silicon (with specific heat csil = 703J/kg · K) at 100oC into 100g of water at 20oC.…

A:

Q: Silicon and germanium are examples of

A: Silicon and Germanium are   good examples of Semiconductors

Q: A material/metal (steel) that contains iron and is often magnetic. a. Mettaloid c. Alloy b. Ferrous…

A: Required : A metal that contains iron and is often magnetic is ..

Q: A bricklayer lays a piece of mortar that's mass is equal to 18.2kg. It as well it has an apparent…

A:

Q: Radius of face-centered cubic cell is 0.2nm. Find its radius in nm.

A: Given, a = 0.2nm For face-centered cubic cell , 4r = a√2, where a is radius r = a√2/4 = a/2√2

Q: | 1. A stacking fault region is a planar defect TT 2. Screw dislocation can cross slip under…

A: 4. True, because in doped ionic materials more vacancies can be found. 5. True, vacancies are…

Q: Which of the following is not a non-ferrous metal? a) Aluminum b) Lead c) Zinc d) Iron

A:

Q: Explain how you would fit a 2.50 cm diameter steel ball into a 2.45 cm diameter aluminum ring…

A:

Q: Gold has a density of 19.32 g/cm3. If a square pyramid has a base length of 5 cm, a height of 6 cm,…

A: Given: Base length of pyramid l=5 cm, Height h=6 cm, Mass m=942 g, Density ρ=19.32 g/cm3. Required:…

Q: of aluminum part is 1.2 m and of the C0 part is 2.5 m. Aluminum Copper La 1:f it ie

A: Given data as per question radius of rod = 0.178cm length of copper part = 2.5cm length of aluminum…

Q: One component of a metal sculpture consists of a solid cube with an edge of length 0.203 m. The…

A: Given data :             Side length of cube, L = 0.203 m             Density of the material , ρ =…

Q: QUESTION 27 What is the type of striking tools shown in the figure: KENNEDY Cross pein hammer O Ball…

A: Question 27 A) cross pein hammer  Question 28 B) Face Shield

Q: 50. Conductivity of silicon Temperature A X B -D X

A: The plot in option A is incorrect because the conductivity does not increase linearly with…

Q: 4. How does adding energy to a solid affect the motion of the particles? - 5. How can a gas at room…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A bricklayer lays a piece of mortar that's mass is equal to 18.2kg. It as well it has an apparent…

A:

Q: Q2. Compare between: 1. Metals and Ceramics 2. Thermoplastic and Thermoset 3. Elastic deformation…

A:

Q: what is the difference at the molecular level between candy that is amorphous and candy that is made…

A: Solution: Given that to differenciate at the molecular level between candy that is amorphous and…

Q: Which one of the following is not an amorphous substance? (A) Rubber (B) Glass (C) Polymer (D)…

A: In physics and chemistry, amorphous is a term used to describe a solid which does not exhibit…

Q: is an example of a semiconductor material O a. silver O b. silicon O c. gold O d. carbon

A: Silicon Silicon is an example of a semiconductor material.

Q: 5- For structures shown, calculate forces in member AB and BD.

A:

Q: What is the density of an unknown and irregularly shaped solid?

A: To find the density of irregularly shaped solid first of all find the mass of the object. Then we…

Q: Give two types of conduction .

A: Conduction is broadly classified into two types : 1. Conduction of heat - When a substance is…

Q: -- is fabricated to be a reverse replica of the part dimension and is designed to check the…

A: Screw pitch gauge is fabricated to be a reverse replica of part dimension and is designed to check…

Q: The 2010 Nobel Prize in Physics was awarded for the discovery of graphene, a two-dimensional form of…

A: Since this is a 2-D lattice, an atom can only oscillate in 2 independent directions. Thus, the…

Q: Which of the following is true about polycrystalline silicon?

A: Polycrystalline silicon consists of many smaller silicon grain of varied crystallographic…

Q: A container can be made from steel [β = 36 × 10-6 (C°)^-1] or lead [β = 87 × 10-6 (C°)^-1] . A…

A: To keep the overflow to a minimum the volume of container should be maximum and volume of liquid…

Q: Explain why a salt crystal will shatter if you hit it with a hammer.

A: In case of salts, where ionic bonds are present, the ions are arranged in a definite unit cell which…

Q: There is water inside your water bottle . Identify the solid .

A: Water is inside the water bottle

Q: A metal specimen was subjected to a Vickers hardness test. The indentation on the surface of the…

A:

Q: Glass is made of which material? A) Calcium carbonate B) Sand C) Silver Iodide D) Lime

A: Introduction: Glass is a transparent noncrystalline solid material which made up of sand, soda,…

Q: what are the characteristics of a solid ? it had ____ shape and a definite ____

A: Required  :  Properties of solids.

Q: One component of a metal sculpture consists of a solid cube with an edge of length 0.263 m. The…

A: Given:- Edge of cube = 0.263 m = 26.3 cm density of cube = 6530 kg/m3

Q: This is an exam, I don't want the solution in detail, I just want the correct answer as soon as…

A: This problem is based on Lorentz force

Q: Aluminum 1 Germanium 2 Hard rubber 3 Glass 4

A: To determine: From the given options, which is a conductor material

Q: 2. A chemist analyzed a rectangular block and found that it was hard, solid, malleable and shiny.…

A: a) Metals. Metals is a solid material which is hard solid, malleable and shiny. They are conductor.

Q: Why is it valid to represent the structure of a crystalline solid by the structure of its unit cell?

A: Because in a crystalline solid these unit cell repeats itself to form the complete solid.

Q: Acrylic bur is made from Titanium Gold Stainless steal Stone

A: Acrylic burs are made from stainless steel of good quality.

Q: Calculate the concentration of vacancies in silicon at the solid-liquid equilibrium temperature of…

A: Given: The temperature is T=1638 K. The vacancy formation energy for vacancies in silicon is H=2.3…

Q: Explain why ductile materials do not fail in a brittle manner even though they have small flaws and…

A:

Q: 2.81 g / cm3 density Al-Cu casting alloy (92% Al - 8% Cu) made of sand with a mass of 20 kg a core…

A: SOlution: Given that density of Al-Cu casting alloy=2.81 g / cm3 Density of the sand core dc = 1.6 g…

Q: Aluminum is not as strong as steel. What other factor should be considered when comparing the…

A: When comparing the desirability of aluminum vs steel, the first factor that can be considered is the…

Q: When a solid is changed to a liquid state, the solid

A: when the state of a solid object changes to liquid state, the intermolecular spaces increases as the…