Part I Multiple choice or short answer questions 1) (2 points) Identify a solid a. Definite volume and no definite shape b. no definite volume and no definite shape c. definite volume and definite shape 2) (2 points) A substance composed of two or more elements in a fixed‚ definite proportion is a. A solution. b. A heterogeneous mixture. c. An alloy. d. A homogeneous mixture. e. A compound. 3) (2 points) Read the water
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electrically charged plates and magnets in the cathode ray tube and observing the deflection of the rays he had enough evidence to say that particles smaller than atoms existed. By doing this experiment multiple times he compiled enough data to conclude that the mass of one of these particles‚ which he called an electron‚ was lighter than an atom of hydrogen by around 2‚000 times. He also found the ratio of charge to mass (e/m) would be the same for any electron.
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Matter is made up and composed of atoms.These atoms have a core called nucleus.Atoms also have electrons orbiting around their nucleus.The core has positive charge while the electrons have negative charge.Rubbing causes unlike atoms to stick and unstick frequently. Atoms "fight" over electrons‚ and the stronger one gets to take the electron home.The triboelectric effect‚also known as triboelectric charging‚is a type of contact electrification on which certain materials become electrically charged
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Petrochemicals prices climb 2% in December on tight supplies LONDON‚ January 9‚ 2013 - Prices in the $3-trillion-plus global petrochemicals market climbed 2% to $1‚350 per metric ton (/mt) in December‚ according to the just-released monthly average of the Platts Global Petrochemical Index (PGPI)‚ a benchmark basket of seven widely used petrochemicals. This follows a drop of 2% in November. But on a year-over-year basis‚ petrochemical prices were up 16% from the December 2011 average price of
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RECOMMENDATIONS Some recommendation for this experiment will be: 1) The use of a bigger water tank‚ this will help to minimize the errors when the grades are read‚ because of the small size of the tank the boat touch the corners of the tank and this can change the real grades of inclination. Not only will a bigger tank help with this‚ but it with help also making the water steadier. With the small tank that was used any movement move the boat side to side making hard the reading of the grade
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World” author Aldous Huxley‚ writes about a society in which “ Community‚ Identity‚ Stability” are the most important things. Nevertheless the price we must pay for a stable community may very well be the sacrifice of our own identity. Maintaining social stability comes at a very high price‚ a price that is not worth paying‚ the sacrifice of our true being. The World State motto is “ Community‚ Identity‚ Stability” In their motto Community and identity come together as one in the community people
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Tyreece Lockhart Ms. Mabury Submission for Stability I walk the new paved streets the government provides‚ I live and pay for the house the government allows me to stay in‚ I ride the bus the government pays for me to use‚ I put my trust in the men and women of the services the government formed. The government is where I should put my trust‚ but does that mean I should give up my freedom for them? Does that mean I should give up what makes me‚ who I am; should I give them my individuality
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Stability in the region with Iranian Nuclear Power The highly praised neo-realist thinker Kenneth Waltz is of the opinion that Iran should go nuclear (Waltz‚ 2012). He considers that a nuclear Iran will bring nuclear stability in the area of the Middle East. There have been past antagonism and unsympathetic liaison between Iran and the US and her supporter Israel. The anxiety has lately been intensify by Iran’s nuclear ambition (Wege‚ 2013). At the same time Matthew Kroenig and Colin Kahl are
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Electoral Systems and Stability in Divided Societies Introduction Severely divided countries pose a particular problem when it comes to securing democratic stability. Such countries are characterised by deep cleavages representing ‘sociocultural and ascriptive traits‚ such as race‚ ethnicity‚ language‚ religion or region’ (Bogaards‚ 2003‚ p. 59). Other forms of social division‚ which focus on wider issues‚ do not diffuse the strength of these cleavages‚ making them particularly entrenched.
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Flight dynamics –II Stability and control Prof. E.G. Tulapurkara Chapter 1 Introduction (Lectures 1‚2 and 3) Keywords : Importance of stability and control analysis ; brief historical background ; basic concepts – static stability‚ dynamic stability‚ longitudinal‚ lateral and directional stability‚ control fixed and control free stability ; controllability; subdivisions of the subject; course outline. Topics 1.1 Opening remarks 1.2 Brief outline of historical developments 1.2.1 Early developments
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