and similarities in texts. A) The two different texts are similar in the fact that the two people in the texts are crossing over water but different in how they are crossing. One is in a boat on the water and the other is in an armchair with helium filled balloons attached to it so he can fly above the water. Source 2 – ‘Up‚ up and away- the day that armchair travel really took off’ is a light hearted read of a man that had planned to do something he had always dreamt of. His journey was
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In Hardy’s “The Man He Killed”‚ he writes the poem as if it is something he had heard‚ giving the story have an unknown narrator‚ strengthening the poem greatly. This strengthens the poem by the making it more of a story from one person to another‚ rather than words straight from the others pen. Hardy’s narrator gives a first person encounter that he had with another solider. His diction used contributes to making the story informal and seems more like a story being told from a common man in
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another example‚ the helium atom‚ shown in Figure 1–2(b)‚ has two protons and two neutrons in the nucleus and two electrons orbiting the nucleus. Atomic Number All elements are arranged in the periodic table of the elements in order according to their atomic number. The atomic numberequals the number of protons in the nucleus‚ which is the same as the number of electrons in an electrically balanced (neutral) atom. For example‚ hydrogen has an atomic number of 1 and helium has an atomic number
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velocity and assume isentropic flow. 3290 mm2; 4840 mm2 Problem 2 It is required to produce a stream of helium at the rate of 0.1 kg/s travelling at sonic velocity at a temperature of 150C. Assume isentropic flow‚ negligible inlet velocity and a back pressure (= exit pressure) of 1.013 bar‚ calculate: (i) the required inlet pressure and temperature; (ii) The exit area of the nozzle. Molar mass of helium is 4 kg/kmol‚ and = 1.66 2.077 bar; 1100C; 593 mm2 Problem 3 Recalculate the above assuming a coefficient
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Contributors of the Periodic Table of Elements The First International Congress of Chemists took place in September 1860 in Karlsruhe‚ Germany to review scientific matters that there was little agreement to. Following this congress led to the development of the periodic table of elements. Top contributors to the periodic table included Staislao Cannizzaro‚ Dmitri Mendeleev‚ Henry Gwyn-Jeffreys Moseley‚ John William Strutt‚ William Ramsay‚ Friedrich Ernst Dorn‚ and Glenn Seaborg. Stanislao Cannizzaro
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the answer lies far away from our earth‚ so far away that we need 100‚000 years to reach them. It all begins with the fusion of hydrogen and helium gas. In our space the gravity gathers particles of dust and hydrogen gas and the clouds grow more dense. They heat upto fantastic 18 million degrees Fahrenheit‚ and nuclear fusion turns hydrogen into helium‚ the fire ignites‚ A star is born. The star have a life cycle just like us‚ the are born‚ they live‚ and they die. they have life cycle of billions
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Unit 5 Galaxies and Cosmology By: Briana Polk Miscellaneous Important Key Words and Facts: I. TYPES OF GALAXIES: Spiral Galaxy (S) Spiral Barred Galaxy (SB) Elliptical Galaxy (E) Irregular Galaxy (In order of importance…) 1. Spiral Galaxies: (Edwin Hubble‚ 1936) “The most common type of galaxy that is viewed by observers; It contains twisted collections of stars‚ stellar remnants‚ and a diffuse interstellar medium (ISM) of gas and dust”. Made up of hot young stars Most spiral
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T and P Kinetic Molecular theory 3/2RT = total kinetic energy ½ mu2 = average kinetic energy Urms speed of mol with average kinetic energy‚ its inversely proportional to the square root of M when T is the same EX. Determine how much faster a helium atom moves‚ on average‚ than a carbon dioxide molecule at the same temperature. The molar masses of He and CO2 are 4.003 and 44.02 g/mol‚ respectively. Diffusion: mixing of gases at random motion & frequent collision Effusion: escape of gas from
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Why Balloons Deflate Over Time Balloons are perhaps one of the main choices for party decorations. They come in different forms and sizes‚ and are made of varying materials. Balloons however do not stay inflated for a long period of time even if they are tightly knotted. Some stay inflated for weeks‚ some for days‚ and some even for only a few hours. Have you ever wondered how the air inside the balloon escapes? There are several factors that cause the deflation of a perfectly inflated balloon
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The sample of clove oil had a split injection from the machine that passed helium gas into the vaporized clove oil to lower the concentration. This is because prior to the the split injection and addition of helium gas‚ the concentration of the clove oil was too high to process. Eugenol and beta- caryophyllene were expected to have a high percent composition as they are the two major components
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