MARKS: 150 TIME: 3 hours This question paper consists of 16 pages‚ a datasheet of 3 pages and a 1-page answer sheet. Copyright reserved Please turn over PHYSICAL SCIENCES P1 (PHYSICS) EXEMPLAR 2007 NATIONAL SENIOR CERTIFICATE GRADE 11 Physical Sciences/P1 DoE/Exemplar 2007 NSC Copyright reserved Please turn over 2 INSTRUCTIONS AND INFORMATION 1. 2. 3. 4. 5. 6. 7. 8. 9. Write your name and/or examination number (and centre number if applicable) in the appropriate spaces on
Free Force Mass Question
REPORT ON STUDENT INDUSTRIAL WORK EXPERIENCE SCHEME (SIWES) (APRIL – OCTOBER 2014) AT NATIONAL INSTITUTE OF INFORMATION TECHNOLOGY (NIIT) BY NWACHUKWU SHEKINAH JIDECHI RNU/CSC2011/0013 COMPUTER SCIENCE RENAISSANCE UNIVERSITY‚ ENUGU NIGERIA. DEDICATION. I dedicate this report to God almighty for his guidance‚ protection‚ favour‚ mercy and love towards me throughout this period‚ to my parents who were there for me financially and emotionally‚ to my lecturers and to the Management of Renaissance
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ERRORS IN MEASUREMENT Errors in Measurement Structure 2.1 Introduction Objectives 2.2 Classification of Errors 2.2.1 Gross Errors 2.2.2 Systematic Errors 2.2.3 Random Errors 2.3 Accuracy and Precision 2.4 Calibration of the Instrument 2.5 Analysis of the Errors 2.5.1 Error Analysis on Common Sense Basis 2.5.2 Statistical Analysis of Experimental Data 2.6 Summary 2.7 Key Words 2.8 Answers to SAQs 2.1 INTRODUCTION The
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Benjamin Franklin Autobiography Benjamin Franklin has a special place in the hearts and minds of American people. He was born on January 6‚ 1706 (and later changed January 17 when calendar was renew in the middle of the century). The place of his birth was at Milk Street Boston across from the Old South Church. He came from a poor and big family. His father is Josiah Franklin who was from the village of Ecton in Northamstonhire who migrated in New World in 1863 to search
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Charybdotoxin acts by blocking a calcium-activated voltage-gated K+ channel with nanomolar affinity. In open and closed states‚ charybdotoxin is able to bind to one of the overlapping binding sites‚ enhanced by weak electrostatic interaction of the negatively charged carboxylates of the channel and the positively charged amino acids of the toxin. Once bound‚ the interaction of the channel surface and charybdotoxin residues will create a high affinity biomolecular complex
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PORTLAND CEMENT Chemical composition. Portland Cement is made up of four main compounds: tricalcium silicate (3CaOSiO2)‚ dicalcium silicate (2CaOSiO2)‚ tricalcium aluminate (3CaOAl2O3)‚ and a tetra-calcium aluminoferrite (4CaO Al2O3Fe2O3). In an abbreviated notation differing from the normal atomic symbols‚ these compounds are designated as C3S‚ C2S‚ C3A‚ and C4AF‚ where C stands for calcium oxide (lime)‚ S for silica‚ A for alumina‚ and F for iron oxide. Small amounts of uncombined
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Electricity generation is the process of creating electricity from other forms of energy. The fundamental principles of electricity generation were discovered during the 1820s and early 1830s by the British scientist Michael Faraday. His basic method is still used today: electricity is generated by the movement of a loop of wire‚ or disc of copper between the poles of a magnet.[1] For electric utilities‚ it is the first process in the delivery of electricity to consumers. The other processes
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------------------------------------------------- Pollution The litter problem on the coast ofGuyana‚ 2010 Pollution is the introduction of contaminants into the natural environment that cause adverse change.[1] Pollution can take the form of chemical substances or energy‚ such as noise‚ heat or light. Pollutants‚ the components of pollution‚ can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution
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La Salle College of Antipolo Feasibility study of a Flashlight to become a Mobile Charger A Research Presented to the Night High School Department LaSalle College Antipolo In Partial Fulfillment of the Requirements for 4th year NHS – Department By: Mark Gerald J. Marinay Ma. Luisa P. Macalalad Rema G. Copino Danica N. Lauzon Marridel M. Urminita Carmela May J. Villaganas March 2011 La Salle College of Antipolo Acknowledgement By working in this investigatory project‚ we would like to thank
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ABSTRACT Fly Ash is a supplementary cementitious material (because of its pozzolanic character) for cement concrete. It is widely available and technically highly useful product. The cement contents‚ Fly Ash Concrete are more durable; actually durability level of Fly Ash Concretes can not de achieved in cement concretes. These aspects‚ besides‚ various benefits of usage of fly ash in cement concrete are discussed in this paper. It is concluded‚ based on the available information‚ that there is no
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