What will happen to the elastic property of Gold when Potassium is added to gold? a) The elastic property of gold decreases b) The elastic property of gold remains unaltered c) The elastic property of gold increases d) Gold loses its elastic property

Q: What is the change in volume of 1.25x 103 cm3 of benzene when it is subjected to a stress of 5.26 x…

A: B=S∆V/V=SV∆V∆V=SVB S is the stress B is the bulk modulus of Benzene

Q: Chinawares are wrapped in straw or paper before packing. Why?

A: Chinaware are wrapped in straw or paper before packing, as when it falls on ground, the force of…

Q: You and a friend are walking across a grassy field and a rain storm is coming.  Suddenly all your…

A: You and your friend are walking outside and a rain storm is coming . If suddenly all your hairs…

Q: What is the energy needed to melt 0.52 kg of gold? (Use: Lf of gold = 63 kJ/kg) Select one: a. 0.64…

A: Required The energy needed to melt gold.

Q: Compare temperatures TA and Tc. p (atm) 5 4 3 2 1 0 1 ● TA TC TA = TC not enough information → V…

A:

Q: In a chemical reaction, some interatomic bonds are formed and others are broken. The reaction is…

A: When bonds are formed ,they released energy . When bonds break ,they need / absorb energy . And in…

Q: The Kinetic Theory of Matter suggests that O Only molecules of liquids have random movement O Only…

A: The kinetic theory of matter helps us to explain why matter exists in different phases (i.e. solid,…

Q: Metal pipes, used to carry water, sometimes burst in the winter because: A metal contracts more than…

A: Here , we have to give the reason , as to why the metal pipes , used to carry water , sometimes…

Q: Crystals are never perfect and contain various types of imperfections and defects that affect many…

A: For figure A In this crystal structure an extra half plane of atom that goes part. This type is…

Q: stress is the relative amount of deformation of a material the relative force resisting deformation…

A: First option says : The relative amount of deformation of a material, this is called strain not…

Q: ou consider to ensure that the fibers remain intact and provide strength to The Matrix? What kind of…

A: Given: To define the strength and problems is shown as:

Q: According to kinetic theory of gases, O a. The velocity of molecules decreases after each collision…

A: According to kinetic theory of gases,  (b) There is no intermolecular attractive force.

Q: Which of the following materials expand the least when heated? A plastic cup A soda can A ceramic…

A: The expansion of material is totally depends on the coefficient of thermal expansion so the higher…

Q: QUESTION 6 In Wheatstone bridge experiment, the relation between Rs and L2/L, that shown in the…

A:

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: Which

A: D

Q: Is this balanced? 10 kg 5 kg 3. 2 3 No, it will rotate clockwise (CW) Not enough information No, it…

A: m = 5 kg M = 10 kg distance of m from pivot = 6 meter distance of M from pivot = 4 meter

Q: What is the reason why Ice with salt melts faster than Ice only?

A: Given : Ice with salt melts faster than Ice only.

Q: If you are grilling hamburgers and getting impatient, why is it a good idea to flatten the burgers…

A: When we flatten the burgers to make them wider and thinner, then the total surface area of the…

Q: Which of the following is NOT an elastic material?

A: Elastic materials : the materials which regain their initial position after removing external force…

Q: The figure on the right shows the temperature dependency of the Young's modulus of three polymer…

A: Curve is between young modulus constant and temperature at three different materials which are epoxy…

Q: What does it mean to say that a material is viscoelastic? Give an example of a viscoelastic…

A: A material is a viscoelastic if it have characteristics of viscous and elastic nature under the…

Q: You can buy an expensive frying pan that is made of copper but has a handle made of stainless steel.…

A:

Q: On the surface of water, hydrogen cannot attach to air. Therefore the ions are pulled inward below…

A: ANS.  Option B  When we filled  a glass of water a very and then add some drops before it overflows…

Q: Question 4 a) FIGURE 3 show the dispersion curve diagram of solids. .... Rndeced we e FIGURE 3 (a)…

A:

Q: -800 Dimensions in mm F1 600 F2 F3 900 e-560-t-480- 480––| What is the x component of F1=774 N?

A:

Q: A change in the average kinetic energy of the molecules of an object may best be detected by…

A: The question asks about the best way to detect a change in the average kinetic energy of the…

Q: d A 12-mm-diameter steel [E = 200 GPa] rod (2) is connected to a 30-mm-wide by 8-mm-thick…

A:

Q: Birds swell their feather in winter, Why?

A: Birds often swell their feathers in the winter in order to keep themselves warm.

Q: Ice covered with a gunnu bag does not melt for long time. Why?

A: The air is a good insulator of heat. In gunny bags, there are pores between consecutive layers or…

Q: It is possible to raise the temperature of a material without adding heat to it (remember delta U =…

A: It is possible to increase the temperature of a material without adding heat to it. The example is…

Q: A jet of diesel with relative density 0.8 strikes normally a plate with a velocity of 12 m/s. The…

A: When a fluid of density "ρ", speed "v" and cross section area "A" hits normally to an object then…

Q: Why were so many vertical columns needed to support the roofs of stone buildings?

A: Stones were the only raw material for construction in ancient Egypt and Greece. But as stones are…

Q: The distance between the centres of carbon and oxygen in the carbon monoxide molecules is 1.13 x…

A: Given: The distance between the centres of carbon and oxygen in the carbon monoxide molecules is…