Why does a gold-plated steel post might not offer the same protection as a 14K gold post?

Q: The density of the classified vibranium steel alloy of captain america is suprosinglylow 1.56g/cm^3.…

A: Density of steel alloy = 1.56 g/cm3 = 1.56 * 10-3 kg/cm3 radius of Cylinder = 42,9 cm Height of…

Q: Product: Nail Cutter 1. Why did we use metal in making nail cutterl? Why not ceramics or polymer?…

A: The solution is shown below

Q: ne atomic radius of gold is ~ 0.140 nm and the radius of copper iS ~0.130 nm. In 14-kar old what…

A: Solution-  (a). Copper is smaller than gold it will substitutes the gold position so it is a…

Q: Chromium(III) sulfate is used for decorative plating. Determine the amount of time in hours needed…

A: Given: The surface area and the thickness of the object is 68.4 cm2 and 24.2 μm, respectively. The…

Q: i) ii) Steel essentially contains a) 80% or more iron b) 50% or more iron c) Alloying elements like…

A: The above questions can be answered as

Q: When a part is made by pressing together powdered metal, no metal is wasted. In contrast, metal is…

A: Given data:

Q: In the "Torch the Money" demonstration, a $5 bill is wrapped around a copper pipe and then placed…

A: As the 5 $ bill was wrapped around copper pipe, and placed in candle flame for 5 seconds. The hear…

Q: The best conductor for electron flow is what type of metal?  a. tin b. bronze c. copper d.…

A: Given, a. tin b. bronze c. copper d. silver

Q: Q/ Correct the under line words 1-Ferrous alloys above 6.67%ls has structure of FeC+ Cementite.

A:

Q: You wish to fabricate sunglasses that consist of a plastic covered with a semi transparent metal…

A: Physical vapor deposition (PVD) is the best method for depositing the thin metal films on other…

Q: Give the name and use of the glassware below: Select the correct response(9): Crucible Tong May be…

A: An image of a glassware is given. We have to identify the name of the glassware and it's function…

Q: Dr Kootsookos was cooking breakfast one day and the saucepan handle got hot and crumbled in her…

A: The polymer which is used for making saurcepan handle name is given below.

Q: Discussion of the result of the Charpy test on Mild steel & Carbon steel

A: Charpy test determines the toughness or impact strength of the material in the presence of a flaw or…

Q: A small amount of resin weighing 4.56g occupies a height of a 10-mL graduated cylinder equivalent to…

A: A small amount of resin weighing 4.56g occupies a height of a 10-ml graduated cylinder equivalent to…

Q: An insulator such as wood would have a high electric resistance. OTrue O False

A: The measure of the opposition of current flow through a substance is known as the resistance of that…

Q: What are the main factors that determine the electrical resistance of a formation?

A: Solution:  The main factors which determine the electrical resistance of formation are mentioned…

Q: bone fracture demands the use a bio-degradable implantplate with a lengthof 50mm and a width of…

A:

Q: cedure that can harden (the medium- rostructure of the steel

A: Given as A metal when it is hardend,it is heated to a point where the element transform into a…

Q: Explain why should acetylene gas cylinders used for gas welding be erected in upright position?

A: Natural gas is primarily derived from deep underground petroleum deposits. Since gases are lighter…

Q: Write working of Solar Furnace in detail

A: A solar furnace is any device that creates heat by concentrating sunlight through the use of…

Q: What is an advantage ofusing shielded metal arc welding?

A: Given: Shielded metal arc welding  To find: Advantages  Solution: SMAW is the short form used for…

Q: Using what you know about conductors and insulators, explain why common electrical wire is…

A: Insulators are substances that do not allow current to pass through it whereas conductors are…

Q: What interaction happens between a soda can and a charged PVC pipe. Explain.

A: A question to explain the interaction between a soda can and a charged PVC pipe.

Q: Discuss the working principle used in flexible displays. Explain the construction of this using the…

A: A flexible display is rollable display which is electronic display and used in most electronic…

Q: What is the procedure for heating the metal sample to an exact but measured temperature?

A:

Q: 5. Consider the phase diagram of Cu-Be shown below. At 1000°C with an overall alloy composition of 1…

A: Given phase diagram:

Q: what is the type of linkage below? is it reducing or non reducing?

A:

Q: Some options Choose Correct option for the main hardening those in cement s. a) Trucall ciam…

A: The hardening of cement is basically due to the hydration of the compounds present in the cement…

Q: (a) the concentration gradient of hydrogen and (b) the flux of hydrogen through the foil.

A:

Q: They are made of matrix and reinforcing material. O Minerals O Composites Compounds O Alloys

A: Composite material produced from two or more constituent materials. minerals are made of chemical…

Q: Which of the following can be used to introduce impurity into a silicon wafer to control the…

A: Thermal diffusion technique is used to introduce impurities into the silicon wafers. It is a high…

Q: b) Diamond is a strong and hard material that does not conduct electricity. Verify this statement.…

A: Diamond is crystalline allotrope of carbon.It is a good conductor of heat but bad conductor of…

Q: Which method is employed for extracting copper from low grade ores and scraps?

A: reduction of ores -by three step-Reaction of the ore (over quite a prolog and on a huge scale) with…

Q: Generally, if a material has a band gap greater than 340kJmol, it is considered an insulator rather…

A: Electron volt, joule and kilo joule are units of energy. Given that, 1eV=1.602×10-19 J.

Q: A generator produces an electric current when a rotates between the poles of two magnets. O a direct…

A: generator produces an electric current when a wire coil rotates between the poles of rwo magnets.…

Q: Why copper is used to make hot water tanks and not steel?

A: This is because steel contains iron which reacts with steam and form iron oxide.

Q: WHICH FORM OF IRON WILL YIELD A HIGHER DENSITY : FCC OR BCC? IRON HAS AN ATOMIC RADIUS OF 0.124 NM

A:

Q: What is NOT a characteristic of carbon nanotubes ? Select one: O Hydrophilic O Hydrophobic O Strong…

A: First Question: Hydrophilic is not a characteristic of carbon nanotubes. Therefore, the correct…

Q: Find at least two ways to differentiate between  jars containing metal beryllium, calcium and…

A:

Q: JJ Techie calcined some ceramic powders at 1600℃ for 12 hrs, when removed from the furnace, JJ was…

A: As JJ  Techie tried for the calcination of the ceramic powders at  16000C for about 12 hours, the…

Q: Is it a good idea to coat or plate the surgical scissors with Cu-Ag alloy? Why or why not?

A: Surgical scissors are used in clinical purpose.During surgery generally scissor made of stainless…

Q: The resistance of a conductor varies inversely as Resistivity .a temperature b O length .c O…

A: Resistance is defined as the opposition offered to the flow of current through the conductor.

Q: packed columns the stationary phase is: (a) packed in the column (b) coated inside the column (c) a…

A: