What happens to a quench-hardened tool or machine part that was not tempered when it is subjected to shock loads or bending stress? A. It is not supposed to be tempered because once it is tempered, it will be brittle.   True False How can a steel that contains insufficient carbon to be hardened be surface hardened? A steel that contains insufficient carbon for the quench and temper process can be heat treated by diffusing carbon, nitrogen, or other hardening compounds into the surfaces of the components being hardened by methods including carburizing, carbonitriding, and nitriding. True False

Q: 1. The thermal conductivity of a material depends only on the type of and is a constant. 2. Good…

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Q: In an industrial factory, four different materials are heated up for the same temperature difference…

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Q: Why is melting of ice considered as a reversible process? A. It is natural for ice to melt by…

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Q: The following holds true for the latent heat of fusion of a material except for a. The heat of…

A: The heat of fusion is the amount of heat per unit mass needed to change the phase of the material.

Q: 7. Consider a material with a mass of 1.3 kg and a specific heat capacity of 1.7 J/kg°C. Compute for…

A:

Q: 8. A sample of oxygen gas with a volume of 3.0m³ is at 100°C. The gas is heated so that it expands…

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Q: If you add 700 kJ of heat to 600 g of water at 60.0°C, how much water will be left in the container?…

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Q: Which of these would best describe the outcome of increasing the kinetic energy of the molecules in…

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Q: A.) True or false, why? a gram of celsium has more atoms than a gram of hydrogen. B.) True or…

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Q: PART 1: A block of an unknown metal is heated to 100°C. It is then placed in a cup of cool water. As…

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Q: A silver block has a mass of 1 kg and specific heat capacity of silver is 0.240 J/g°C. What is the…

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Q: By ideal gas law, the thermal pressure of a gas depends on A. number density of particles only. B.…

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Q: 1. Answer the following True/False question  a. Metallic expansion thermometers use mechanical…

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Q: The initial temperature of an object is 30°C. If the internal energy of the object doubles, what is…

A: Initial Temperature of the object is (Ti)=300 C Final Internal Energy = 2×Initial Internal energy

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Q: . If you were to calculate how much energy (in cal) will it take to raise the temperature of 23.0 g…

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Q: 1. the picture is pressure and volume relationship of an ideal gas at constant temperature  A. This…

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Q: A-Determine the amount of each phase in the Cu-40% Ni alloy shown in bellow figure at 1300°C,…

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Q: (aq) Each of the reactant solutions had a density of 1.04 g mL and an initial temperature of 22.6…

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Q: 3. After eating a 200 g pottle of yoghurt, a person decides to go for a run to burn off the extra…

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Q: An ideal gas in a closed container of constant volume is warmed until its pressure doubles. The gas…

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Q: Which one of the following statements is incorrect? A. The metal with higher a value expands more…

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Q: As I use sandpaper on some rusty metal, the sandpaper gets hot because: a. heat is flowing from the…

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Q: 18. You have equal masses of lead (cPb = 0.031 cal/g oC) and aluminum (cAl = 0.215 cal/g oC). Each…

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Q: 5. A fire extinguisher has an internal pressure of 300 psi at 25°C. What is the pressure at it is…

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!