performance and workmanship standards within the national codes that are separated by division such as mechanical and electrical. If a buildings electrical system is installed to just a minimum standard it will be putting allot of people in harm’s way. Electricity is dangerous and explosions from things like an arc flash is something no one wants to see happen; but the fact is they do.. How can you be assured that the installation of a system in a given building or home is safe? The Code. The national electrical
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GRADE: 8th TEACHER: Mrs. Russo I. Statement of Purpose and Hypothesis: Our purpose for this project was to find out what fruits and vegetables could generate an electric charge. We also wanted to find out which ones had the greatest and least charge. Our hypothesis stated that the potato would have the greatest charge
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History of Electrotherapy Electrotherapy was developed by a man called Guillaume Duchenne. Duchenne publicly announced in 1855 that when electricity flowed into a muscular area of the human body‚ there was a reaction. The reaction that was produced by the contact flow of electricity was that the muscle began to contract as soon as the electricity made direct contact with the desired muscles. He also realised that the type of electrical current aided the success of electrotherapy‚ as the wrong
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Ladders are some of the most important tools you can use on a job site. There are different types of ladders to be used in different situations. The types of ladders available are Wooden‚ Aluminum‚ and fiberglass. Wooden ladders are heavy and hard to keep clean. Wooden ladders are sturdier than fiberglass or aluminum ladders and can be used when heavy loads must be moved up or down the ladder. Aluminum ladders are corrosion-resistant and can be used where ladders might be exposed to weather. They
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An experiment to investigate the factors which affect Resistance in a wire What is resistance? A potential difference (V) applied across a wire of length (l)‚ there is in the conductor‚ an electric field (E). In this electric field the free electrons are not however under continuous acceleration (Ee/m). This is because they repeatedly collide with the moderately massive vibrating atoms losing their kinetic energy. The vibrating atoms having gained this kinetic energy now vibrate more. The resulting
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Over history‚ billions of persons have existed around the globe. However‚ out of the numerous people‚ only handfuls have undertaken procedures and innovations that draw universal acknowledgment and admiration. In such a way‚ through innovation and development of ideas‚ such characters have drastically changed the world. Born on July 10‚ 1856‚ Nikola Tesla forms part of such individuals who have influenced the globe in a particular way. Tesla was a brilliant Serbian inventor who made significant inventions
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WIRELESS VIBRATION MEASUREMENT SYSTEM Vibrations are caused due to mechanical oscillation of a structure about an equilibrium point. There will be vibrations involved everywhere where there is any rotating system‚ mechanical system is involved. The vibrations involved at in these places will of high frequency. There will some places where the vibrations of lo0w frequency will be present which will also disturb the normal operation of the system or faultiness in the values measured by the system
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Statics 1. A uniform flexible steel cable of mass m is suspended between two equal elevation points as shown in the figure below. (a) Determine the tension in the cable (i) at the points of attachment‚ [[pic]] (ii) at its lowest point in terms of (. [[pic]] b) What is the direction of the tension force in each case? 2. Two guy wires run from the top of a pole 2.6 m tall that supports a volleyball net. The two wires are anchored to the ground 2.0 m apart and each is 2.0 m
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Scientist Nikola Tesla was an influential historical figure whose findings and inventions helped shape the modern world of electricity. The 18th-19th century scientist quickly became known as the “Mad Scientist”‚ and later as the “Genius Who Lit the World”. Nikola Tesla is responsible for over 300 inventions and 700 patents worldwide. He was not properly credited or widely accepted as a great inventor until after his death. However‚ that did not stop the great man from furthering his studies and
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References: [1] J. C. Maxwell. A Treatise on Electricity and Magnetism. Dover‚ 3rd edition‚ 1954. First published: Clarendon press‚ 1891. A Formulæ E = mc2 2
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