The electric field depicts the surrounding force of an electrically charged particle exerted on other electrically charged objects. The concept of an electric field was introduced by Michael Faraday. The electric field is a vector field with SI units of newtons per coulomb (N C−1) or‚ equivalently‚ volts per metre (V m−1). The SI base units of the electric field are kg⋅m⋅s−3⋅A−1. The strength or magnitude of the field at a given point is defined as the force that would be exerted on a positive test
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1 1 A wooden block of mass 0.60 kg is on a rough horizontal surface. A force of 12 N is applied to the block and it accelerates at 4.0 m s –2. 4.0 m s–2 wooden block 12 N What is the magnitude of the frictional force acting on the block? A B 9.6 N C 14 N D 2 2.4 N 16 N A submarine descends vertically at constant velocity. The three forces acting on the submarine are viscous drag‚ upthrust and weight. Which relationship between their magnitudes is correct
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Force Field Analysis: Driving Forces Field Analysis: Driving Forces KURT LEWIN’S CHANGE THEORY By: Mandeep Chahal & Arvinder Khaira Mandeep Chahal Arvinder Khaira DRIVING FORCE Driving Forces are forces that push in a direction that causes change to occur. They cause a shift in the equilibrium towards change change. i.e. A married couple who has to get ready for a party‚ the husband is on the couch watching the football game. The wife encourages her Th husband to get ready because
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Competitive Forces (Porter’s 5 Forces) Analysis of the competitive environment can be done utilising Michael Porter’s 5-forces model of UPS and FedEx. Porter’s theoretical framework allows us to determine the overall profitability and sustainability within the industry (Laudon & Laudon 2006‚ pg.99; Hubbard 2004‚ pg.211). We reckon that in this case‚ the competitive forces for both UPS and FedEx are very similar because they are both in the same industry. Power of substitutes: Communications
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H. J. HEINZ: ESTIMATING THE COST OF CAPITAL IN UNCERTAIN TIMES Heinz is an established processed food manufacturing giant‚ with $10 billion in revenues and 29‚600 employees around the globe. Heinz operates in over 200 countries. The company is organized into business segments based on regions: North American consumer products‚ Europe Foodservice‚ Asia Pacific and the rest of the world. Around 60% of the company revenues were from outside United States and the company is increasingly focusing on
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the key characteristic of the U.S. Air Force became its airlift capability. Saying that‚ the Air Force became essential element in joint military operation supporting one of the joint functions such as sustainment. Sustainment gives necessary ability to joint forces to maintain and prolong operations until mission accomplished. Moreover‚ the ability of the Air Force to provide by air material and personnel in the theater of military actions gives to Joint Force Command (JFC) flexibility and the ability
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Management Model‚ it shows how the external audit fits into the Strategic Management Process. Key External Forces External forces can be divided into five broad categories: * Economic forces; * Social‚ cultural‚ demographic‚ and environmental forces; * Political‚ governmental‚ and legal forces; * Technological forces; and * Competitive forces. Relationships among these forces and an organization are depicted in illustration below. External trends and events significantly affect
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domestic markets but are capable of achieving market share in foreign markets. In the fourth quarter of the PC market in 2006‚ the U.S. domestic industry recorded 3% unit growth. Although the industry is providing positive numbers‚ it is controlled by 5 key manufacturers that construct a barrier to entry for smaller computer manufacturers. Each firm has strong brand names and has the right mixes of resources and capabilities. Small firms lack the resources and capability of acquiring enough capital
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= 300g 9.8 3. Explain the effect of mass on Hooke’s Law. Hooke’s Law states that the restoring force of a spring is directly proportional to a small displacement. Applying a mass to the end of the spring stretches it‚ changing the length from its original equilibrium position of rest‚ to a new (lower) equilibrium position. At this position‚ the vertical restoring force of the spring balances the weight and the downward pull of gravity is balanced by the upward pull of the spring
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A ball is thrown upward at time t=0 from the ground with an initial velocity of 18 m/s (~ 40 mph). Assume that g = 10 m/s2. Time to reach apex 18/10 = 1.8 Time x 2 = 3.6 Great height reached by ball – (Velocity)(time)+(-5)(time^2) 18x1.8+(-5)(1.8^2)=16.2 A model rocket accelerates upward from the ground with a constant acceleration‚ reaching a height of 63 m in 8 s. * Speed at height 63 - 2x63/8 = answer What is the acceleration= answer/8 * If you were to drop a rock from a tall building
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