God - A Myth or Reality? C.S. Lewis once aforementioned that God is not the sort of subject one can be somewhat interested in. Yet, if God does not exist, then there is no cause to be concerned of Him. However, if He does exist, then this is of preeminent discussion, and “our ultimate concern ought to be how to be properly related to this being -- God -- upon whom we depend on moment by moment for our very existence” (Craig, 2014, p. 1). Another quote of C.S. Lewis’s says, “Atheist rage against God;
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M12/4/PHYSI/HPM/ENG/TZ1/XX 22126507 Physics Higher level Paper 1 Thursday 10 May 2012 (afternoon) 1 hour INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question, choose the answer you consider to be the best and indicate your choice on the answer sheet provided. • A clean copy of the Physics Data Booklet is required for this paper. • The maximum mark for this examination paper is [40 marks]
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chemical discoveries, Chemists and Scientist discovered different representations of the same atom/element, these are known as isotopes. Isotopes are variants of a chemical element, which differs in neutrons; the varied isotopes have the same number of protons in the atom. The existence of isotopes was first advised the radiochemist Frederick Soddy for radioactive studies on decay chains. Theories made by
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1.0 INTRODUCTION Just a few years after independence from the United Kingdom in 1957, had the World Bank’s country‐classification system been in place, Malaysia would have qualified as a middle‐income country. Since then, it has continued to enjoy relative prosperity, initially as a commodity exporter of rubber, tin, then palm oil and petroleum, with total income rising at 6 to 7 percent each year from 1970 until 2000. As a result, industrial sector in Malaysia has been rapidly grow over
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humans? 15. What are the major characteristics of protons, neutrons, and electrons? What is their size/mass? Where are they found? What is their charge? 16. What is the basic structure of an atom? 17. What is atomic number? What knowledge does that tell us about an atom? 18. What is atomic mass (mass number)? What knowledge does that tell us about an atom? 19. What is the difference between atomic weight and atomic mass? 20. How can the number of protons, neutrons, and electrons calculated? 21. What
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Four fundamental forces: Strong nuclear (strength: 10^38) (Range: less than 10^-15) -Force that holds protons and neutrons together in a nucleus of an atom Electromagnetic (strength: 10^36) (Range: infinity) -Force caused by electric charges Weak nuclear (strength: 10^25) (Range: less than 10^-18) -force responsible for interactions involving elementary particles such as protons and neutrons Gravitational (strength: 1) (Range: infinity) -force of attraction between all objects *All of them
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- Medicinal Chemistry - Question No. 3. Define the Hammett Constant and the hydrophobic (Hansch) substituent constant. Comment on how inductive and mesomeric polar effects are treated in substituted aromatic systems. A quantitative structure-activity relationship (QSAR) is an equation which correlates measurable or calculable physical or molecular properties to some specific biological activity. Once this relationship has been determined, it is possible to predict the biological activity of related
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Chemistry Notes 2010 Core Module 1: Production of Materials Contextual Outline Humans have always exploited their natural environment for all their needs including food, clothing and shelter. As the cultural development of humans continued, they looked for a greater variety of materials to cater for their needs. The twentieth century saw an explosion in both the use of traditional materials and in the research for development of a wider range of materials to satisfy technological developments.
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hydrogen, with some helium and trace amounts of other elements. This matter clumped together under its own gravitational pull to form clouds. Within these clouds, scientists think hydrogen atoms (which contain one proton and one electron) bonded with negatively charged hydrogen ions (one proton and two electrons) to form molecular hydrogen, consisting of two hydrogen atoms chemically bonded. This chemical reaction served to cool and condense the clouds until they were dense enough to ignite nuclear fusion
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Darmstadtium Its chemical symbol is “Ds”, chemical element with atomic number 110. It is produced artificially by nuclear fusion. Each Darmstadtium atom has a very large nucleus, or central mass, containing positively charged particles called protons and neutral particles called neutrons. Dirk Coster He is known as the co-discoverer of Hafnium (Hf) (element 72) in 1923, along with George Charles von Hevesy, by means of X-ray spectroscopic analysis of zirconium ore
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