Date: 8 April 2009 EXAMINATION TECHNIQUE 1 INTRODUCTION The pointers discussed below were compiled to assist rock engineering students attempting the written examinations for the Chamber of Mines Strata Control and Rock Mechanics Certificates. 2 BEFORE ENTERING THE EXAM VENUE 2.1 Confirm the location of the exam venue‚ how long it takes to get there and allow for any minor mishaps and traffic congestion in planning travelling time. 2.2 Make sure you have a watch that can measure time
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v ..... ...... ‚ .... -%° NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS REPORT No. 572 DETERMINATION -; OF THE CHARACTERISTICS WINGS OF TAPERED By RAYMOND F. ANDERSON ./ / .! REPRINT OF REPORT No. $’/2‚ ORIGINALLY PUBLISHED FEBRUARY 15J_7 r B..t .f ....... --i. REPRODUCED qY NATIONAL TECHNICAL INFORMATION SERVICE U. S OEPARFMENFOF Cr_MMERCt \ 1940 i AERONAUTIC I. FUNDAMENTAL Metrio Symbol Unit
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RESUME RAKESH BABU B-102‚ Beta – I‚ Greater Noida (G.B. Nagar) U.P. Mobile 9990077052 Email: rb_2005@rediffmail.com OBJECTIVE: Seeking a challenging assignment in a reputed entity offering growth opportunity while utilizing my experience and skills Educational QUALIFICATION: * P.G. Economics ‚Political Science from C.C.S university Meerut in year 1995 * Diploma In Labour Welfare Course * P.G.D.M. from IASE University EXPERIENCE: 23 years experience of Auto Mobile Industries/Logistics
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Atoms Atom is the fundamental building block of all stuff‚ or what scientists like to call "matter". An individual atom is very small. In fact‚ the smallest type of atom‚ hydrogen‚ has a diameter of 10-8 cm. Every single object is composed of atoms. Our body is made up of many‚ many individual atoms. There are also many different types of atom. These different types are called elements. Examples of some elements are hydrogen‚ oxygen‚ and helium. Under normal conditions many atoms can stick together
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1: The atom Introduction Atoms are the building blocks for matter Everything is made up of atoms 1A: Sub-atomic particles Atoms are made up of 3 sub-atomic particles‚ 2 of which are located in the nucleus (the heart of the atom) Positively charges protons and neutrally charged (non-charged) neutrons are found in the nucleus Negatively charged electrons are located orbiting the nucleus in shells. They stay in orbit because the electrons are attracted to the protons 2: The Element
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Chapter 5: Electrons In Atoms A. Models of the atom i. The Development of Atomic Models Protons and neutrons make up a nucleus surrounded by electrons Rutherford’s model or theory ( figured electrons move around the nucleus) His theory didn’t explain why metals or compounds of medals give off characteristics of colors when heated. Also didn’t explain why the atomic model could not explain the chemical properties of elements ii. The Bhor Model Bohr proposed that an electron is found in specific
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Atoms make up everything around us‚ including ourselves. They consist of protons which give off a positive charge‚ electrons which give off a negative charge and neutrons which have no charge. In an atom there are the same amount of protons as there are electrons. If there weren’t it would cause the atom to behave differently. Atoms have layers around them called shells which contain electrons. Each shell can only hold a certain amount of electrons. Molecules can be multiple atoms of the same element
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Subatomic particles Main article: Subatomic particle Though the word atom originally denoted a particle that cannot be cut into smaller particles‚ in modern scientific usage the atom is composed of various subatomic particles. The constituent particles of an atom are the electron‚ the proton and the neutron. However‚ the hydrogen-1 atom has no neutrons and a positive hydrogen ion has no electrons. The electron is by far the least massive of these particles at 9.11×10−31 kg‚ with a negative
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|Atoms and Molecules | |Everyday Science | | An atom is the smallest "piece" of an element that still has the properties of that element. A molecule is a combination of two or more | |atoms bonded together.
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modern concept of the atom. I am going to give a brief history of the atomic model including Thomson’s atom‚ Rutherford’s atom‚ Bohr’s atom‚ and Schrödinger’s atom. I am going to include a diagram for each of these models. In 1897 physicist‚ J.J. Thomson‚ shortly after discovering electrons‚ proposed his Plum-Pudding model of the atom. He based this model on the two facts that he knew at the time: 1. atoms contain small negatively charged particles called electrons and 2. atoms behave as if they
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