across the world .Facebook today has become a synonym for people across the world to connect with others and share their thoughts and ideas. THE CASE: Shareholders passed a resolution asking to generate revenues from the increasing user base. The charge could be some monthly fee or from a new unit being added. The latest revenue of Facebook is quoted as $1.6 billion and net income of $500 million. The company is planning to go for an IPO in near future and also the valuation of the company is $100
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Lightning is the energy created by friction from the rise and fall of hot and cold air masses in the clouds. This energy‚ which is only visible as lightning‚ retains a negative charge. To equalize‚ this negative charge must contact a positive charge‚ which is held by ground. The positive charge and the negative charge seek the best route to meet and dissipate; meaning that lightning is only looking for a way to obtain ground. Lightning decides on a target no more than 500 feet prior to striking
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Ion Exchange Chromatography Week 10 TAG Question 1: Chapter 6-4 of your technique book provides a detailed description of how to run a ion- exchange column. Assume you have a cation-exchange column already prepared and ready to use. Create an outline of no more than 10 steps describing how you will regenerate the column‚ load your sample and collect the hydronium ion released. 1. Open the stopcock at the bottom of the column and allow solution to drain out until the solution level in the
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electricity on their body‚ which can result in electrostatic discharge. It is used in the electronics industry by workers working on electronic devices which can be damaged by ESD‚ and also sometimes by people working around explosives‚ to prevent electric sparks which could set off an explosion. It consists of a stretchy band of fabric with fine conductive fibers woven into it‚ attached to a wire with a clip on the end to connect it to a ground conductor. The fibers are usually made of carbon or carbon-filled
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Abstract The present study‚ considering Barium strontium titanate due to its important applications in the electronic device as the piezoelectric material due to excellent performance as sensing and actuation. Barium strontium titanate nanocrystalline ceramic have been synthesized from mechanical alloying of commercially available BaCO3‚ SrCO3 and TiO2 by high energy ball milling. This method has produced nano-sized particles as well as highly reactive surface‚ can cause structural relaxation of
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strip is rubbed by tissue‚ it will charge the vinyl strip negatively and acetate strip positively caused by the transfer of electron between the strip and tissue. If molecules have non zero bond dipole‚ because polar molecule must have a non-zero molecular dipole where electron spend more of their time closer to one atomic nucleus than the other and make one end partially positive or negative than the other end. Different charge will attract the opposite charge which will bend the stream of liquid
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Science‚ Medicine & Technology – Lecture 2 14th September‚ 2012 Global Warming – Paul Waithe * Differences between climate change & global warming: Global warming is the overall increase in the earth’s temperature. Climate change may be in either direction. For instance; more hurricanes‚ more wind etc. Comprehensive way at looking at weather patterns. * Climate change over the past century is directly linked to global warming. * Global warming could result in the world
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PHY 156 4870 Lab Report #6: RC Circuits October 14th‚ 2011 Objectives: The purpose of this lab is to observe the charge and discharge curves of a capacitor and determine its time constant. The capacitor is observed with respect to the voltage traveling through the capacitor. Principles: One of the main principles of this experiment is defined by V = VB [1 – exp (-t/RC)] for a charging capacitor and furthermore‚ τ is defined by resistance multiplied by capacitance(R * C). Thus
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distance‚ and second we will look at how the magnitude and sign of the charges affect the force. 2. Theory- As is well known‚ like charges repel and opposite charges attract. That being said‚ the strength of those forces also depends on the distance between the two charges. By observing this force over countless experiments Charles-Augustin de Coulomb discovered an inverse square law relating the force between two charges to the distance between them. This relationship is described by the following
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Naming Chemical Compounds General Information: Scientists all around the globe use a standard method for naming chemical compounds. The standards were set up by an international committee sponsored by the International Union of Pure and Applied Chemistry (IUPAC). Having this standard makes life easier for people who use these compounds everyday. It would be tough to set up any experiment if scientists everywhere used different names for the same compound. It would also make the lab a
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