In 1687‚ Sir Isaac Newton published what are known today as Newton’s three laws of motion. If these laws didn’t exist‚ motion and life would not exist. His three laws are accurately relative to what "normal" speeds are on earth. Newton’s first law is most commonly referred to as the law of inertia. The law states that an object that is at rest will stay at rest unless an unbalanced force acts upon it‚ and vice-versa. If an object is moving and there is no force to move the object in a different
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ASP 0501 EXERCISES – circular motion 1 A car travels at a constant speed around a circular track whose radius is 2.6 km. The car goes once around the track in 360 s. What is the magnitude of the centripetal acceleration of the car? 2 An astronaut in a chamber moves on a circular path‚ much like a model airplane flying in a circle on a guideline. The chamber is located 15 m from the center of the circle. At what speed must the chamber move so that the astronaut is subjected to 7.5 times the acceleration
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CASE: Research in Motion (RIM) Introduction Research In Motion (RIM) is the company behind BlackBerry‚ one of the best-selling smartphone brands in the US. RIM first went public in 1997 and introduced BlackBerry as a paging device that allowed user to read emails. Soon‚ BlackBerry evolved into a full blown smartphone: a call‚ text‚ email capable organizer. It first gained ground in the business community and government‚ with its high-se curity and essential business features. BlackBerry was
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Water is a human right‚ not a commodity. It is the essence of life‚ sustaining every living being on the planet. Without it we would have no plants‚ no animals‚ no people. However‚ while water consumption doubles every twenty years our water sources are being depleted‚ polluted and exploited by multinational corporations. Water privatization has been promoted by corporations and international lending institutions as the solution to the global water crises but the only one’s who benefit from water
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EXERCISE 7 - Rotational Kinematics and circular motion 1. A wheel has a radius of 4.1 m. How far (path length) does a point on the circumference travel if the wheel is rotated through angles of 30°‚ 30 rad‚ and 30 rev‚ respectively? 2.1m‚ 1.2x102 m‚ 7.7. x102m 2. A centrifuge in a medical laboratory rotates at an angular speed of 3 600 rev/min. When switched off‚ it rotates through 50.0 revolutions before coming to rest. Find
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constant. If a ball is attached to the end of string and swung at a constant speed (i.e. only the direction of the velocity is changing not the magnitude) then there must still be an acceleration. The acceleration is directed towards the center of the motion. This acceleration is call centripetal acceleration! 2.6.2 State the expression for centripetal acceleration. The acceleration of any object moving in a circle at a constant speed is given by the equation: (1) a⃗ =v2r It is important to note
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Homosexual Adoption Our world today is full of unsolved and controversial issues. Most of them relate to our morals‚ ethics‚ and religion‚ creating a very strong yes and no or good and bad side. The idea in society is to raise children with a man and a woman. Every child in an orphanage dreams about being loved by parents. Although it may be argued that the current adoption policy is too specific‚ I believe that same-sex adoption should not be allowed into the adoption process. By providing an
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Who is Claes Oldenburg? Claes Oldenburg is an American sculptor‚ best known for his public art installations typically featuring very large replicas of everyday objects. Another theme in his work is soft sculpture versions of everyday objects. Where is he from? Claes Oldenburg is from Stockholm. Stockholm is the capital of Sweden. Stockholm is the most
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Kheng Horng Gan Edwin IS-240.009‚ Disc6 2/23/14 Questions 2 – Evaluate the advantages of the relational database model A relational database model has many advantages such as increase flexibility‚ increase information security‚ increase scalability and performance‚ increase information integrity (quality)‚ and reduce information redundancy. Firstly‚ most of the companies use database because it can handle changes easily and quickly. There are two views used to understand the flexible database
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Water Polo What is Water Polo? Water polo‚ or Water ball‚ is a team water sport. The playing team consists of six field players and one goalkeeper. The winner of the game is the team that scores the most goals. Game play involves swimming‚ treading water‚ players passing the ball while being defended by opponents‚ and scoring by throwing the ball into a net defended by a goalie. Water polo is very similar to handball on land. Basic Skills Water Polo is a team water activity requiring swimming
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