ferrite (); (c) There is a 1.25-kg cementite (Fe3C); (d) The alloy is in a three-phase field of Fe3C; (e) The alloy is 100% solid. (3 points) Your Answer: ____________ 6. An ellipsoid with major axes of 2"‚ 3" and 4" is to be die cast in a graphite mold. The mold has a specific weight of 350 lbf/ft3 and outer dimensions of 6" by 6" by 6" as shown in the figure. Note that the parting line of the mold lies on the plane of maximum cross-section of the casting. In this case a clamping force
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JSB Market Research: Carbon Nanotubes Market by Type‚ Application & Geography - Global Trends & Forecasts To 2018 On 4thJuly 2014 Range of applications such as electronics‚ medicine‚ aerospace‚ defense‚ automotives‚ energy‚ construction‚ etc. With some of the big producers stepping up their production capacities‚ the prices of CNTs are bound to come down and this will induce a spiraling effect on the application areas; thereby pushing up the demand for CNTs. With extensive research regarding
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Chemical Prperties of Metals Most metals are chemically reactive‚ reacting with oxygen in the air to form oxides over changing timescales (for example iron rusts over years and potassium burns in seconds). The alkali metals react quickest followed by the alkaline earth metals‚ found in the leftmost two groups of the periodic table. Examples: 4Na + O2 → 2Na2O (sodium oxide) 2Ca + O2 → 2CaO (calcium oxide) 4Al + 3O2 → 2Al2O3 (aluminium oxide) The transition metals take much longer to
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Van der Waal’s forces -- Electrons will not be evenly spread around an atom/molecule at any given time‚ meaning the molecule will have a slight +ve charge on one end‚ and a -ve at the other. this temporary state may cause attraction between two molecules‚ pulling them together (also known as London dispersion forces). The magnitude pof Van der Waals force depends on the relative molecular mass‚ high mass produces a larger force. Boiling points of the alkanes data and alkenes data These very
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harmonies d. values e. All these answers are correct. Answer: d 8. In drawing‚ the outer boundaries of two-dimensional forms are defined by ________‚ while the outer boundaries perceived among three-dimensional forms are defined by ________. a. graphite; ink b. visual elements; principles of design c. outlines; contour lines d. thick lines; thin lines e. actual lines; implied lines Answer: c 9. In painting and drawing‚ artists often use the technique of ________ to describe the way shadows and
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English 1301 2014 September 22 Charlotte’s Web Reading is such a strange concept. People are willingly staring at a piece of deconstructed wood that has been pressed thin‚ and they continually try to decipher scribbles that are written on it by graphite from a writing device. By themselves‚ the scribbles slowly begin to form into words‚ and as a whole‚ the scribbles that have formed into words can now be read in its entirety and be grouped into a category or genre that it may fall under. For example
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to develop an atomic energy program known as the Manhattan Project (endorsed by Albert Einstein). In 1942‚ under the confidentiality of the U.S.‚ government‚ Szilard along with Enrico Fermi construct the first “neutronic reactor‚” a uranium and graphite “pile” in which the first self-sustaining nuclear chain reaction was achieved. (quote) With tension‚ brewing with government officials Leo Szilard would quickly realized his work would be used against his beliefs. With WWII occurring‚ in efforts
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DDJ 3003 : MANUFACTURING PROCESSES CHAPTER 1 : INTRODUCTION MANUFACTURING - derived from Latin It is converting raw materials into Products using machinery and operations through a well-organized plan It has the function of adding value. Discrete or Continuous products 1. DEFINITION OF MANUFACTURING 1. The application of physical and chemical processes to alter the geometry‚ properties‚ and/or appearance of a given starting material to make parts or products. 2. The transformation of
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written. This is the only way that I can give partial credit for incorrect answers. 1. Creative Sports Designs (CSD) manufactures a standard-size racket and an oversize racket. The firm’s rackets are extremely light due to the use of a magnesium-graphite alloy that was invented by the firm’s founder. Each standard-size racket uses 0.15 kg of the alloy and each oversize racket uses 0.25 kg. Over the next two-week production period‚ only 100 kg of the alloy are available. Each standard size racket
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HYDROGEN BONDING: Hydrogen bonding is a bonding type consisting of dipole and dispersion forces. A hydrogen bond is the attractive force between a hydrogen atom attached to a molecule and an atom of a different molecule. According to the Pauling scale of electro-negativities of the elements‚ it can be viewed that the three most electronegative elements in the periodical table are nitrogen‚ oxygen and fluorine. These are also called heteroatoms. The heteroatoms have a partial negative charge while
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