SACE Stage 2 Physics Electric Fields 1 Solution 1. (a) State Coulomb’s Law. Any two point charges have acting on them equal sized oppositely directed forces acting along the line joining their centres. The magnitude of these equal sized forces is directly proportional to the product of the charges and inversely proportional to the square of their distance apart. The forces are attractive for unlike charges and repulsive for like charges. [pic]. e.g.
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Mini Case Study Can GE Remake Itself as a Digital Firm? General Electric (GE) is the world ’s largest diversified manufacturer. Fortune named GE "America ’s Most Admired Company" in 1998‚ 1999‚ and 2000. Jack Welch‚ GE ’s CEO and Chairman since 1981‚ is often cited as the most admired CEO in the United States. Headquartered in Fairfield‚ Connecticut‚ the company consists of 20 units‚ including Appliances‚ Broadcasting (NBC)‚ Capital‚ Medical Systems‚ and Transportation Systems. With the acquisition
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Are electric cars better for the environment than gasoline ones? Nowadays‚ people all over the world do their best to live greener and not contribute to global warming. An invention that is meant to help reduce the amount of toxic waste that is polluting the environment nowadays is that of the electric car. But is electric really so much better than gas? Electric cars are emission free‚ compact and lightweight‚ and three times as efficient as gas engines.
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________________________ Date ___________ Block ___ Electric Currents Review 1) When work is done on a positive test charge to move it from one location to another‚ potential energy ______________ (increases‚ decreases) and electric potential _____________________ (increases‚ decreases). 2) When a positive test charge naturally moves from one location to another (without the exertion of a non-conservative force)‚ potential energy _________________ (increases‚ decreases) and electric potential ______________ (increases
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74 CREATIVITY AND INNOVATION MANAGEMENT Case Study: Jack Welch’s Creative Revolutionary Transformation of General Electric and the Thermidorean Reaction (1981–2004) Pier A. Abetti This case study draws a parallel between the French Revolution and the GE ‘revolution’‚ according to three waves of transformation. We discuss the ‘hard’ effects on GE employees (strategy‚ structure‚ employment‚ rewards) and the ‘soft’ effects (culture‚ work climate‚ indoctrination). In parallel with the French
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Electric cars are seen as the future of human life. They provide an oppurtunity of being clean and eco-friendly. Electric car motors are magnificent and figuring out how they work is a mystery. Electric cars have also been around for a while since almost two decades ago. Electric cars are proven to be better for the environment. Electric cars are a prime example of how electricity has changed over the years. First‚ electric cars are amazing‚ but what is more amazing is the motor that makes one
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input pricing. However‚ the electric vehicle (EV) industry demonstrates a different type of dynamic. Consumer power is middling‚ due to slightly higher switching costs and the limited selection of mass produced EVs currently available. The threat of new entrants is much greater since both traditional automakers are entering the electric market‚ complemented by an ever-increasing number of start-ups. Around 1890‚ the first American electric car powered by 24 batteries had a range of 50 miles and went
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whether it is sustainable. General electric: Headquarters Fairfield‚ Connecticut‚ U.S. Revenue: US$ 182.515 billion (2008) Net income: US$ 17.410 billion (2008) Total assets: US$ 797.769 billion (2008) Employees: 323‚000 (2008) CEO & Chairman – Jeffrey R. Immelt Lines of business: Aviation‚ Jet engines‚ Electricity‚ Entertainment‚ Finance‚ Gas turbines‚ Generation‚ Industrial Automation‚ Lighting‚ Medical imaging equipment‚ Medical technology‚ Health informatics‚ Electric motors‚ Locomotives‚ Wind turbines
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Sakib Khan Electric Eels – Physics The animal that is usually known as electric eel is in fact not really an eel but a freshwater species related more to the carp family or catfish family. These unique freshwater predators got their name from the immense electrical charge that they can easily generate to stun or even kill their preys and dissuade predators. Electric eels can grow extremely large which usually can reach as high as 8 foot long and weigh a great amount of 45lbs. In addition to this
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An electric car is powered by an electric motor instead of a gasoline engine. The electric motor gets energy from a controller‚ which regulates the amount of power transmitted throughout the vehicle‚ based on the driver’s use of an accelerator pedal. The electric motors give electric cars instant torque‚ creating a strong and smooth acceleration pattern. Electric cars are about three times more efficient than cars with an internal combustion engine. A pure-battery electric car uses energy stored
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