The formation of an action potential can be divided into five steps. (1) A stimulus from a sensory cell or another neuron causes the target cell to depolarize toward the threshold potential. (2) If the threshold of excitation is reached‚ all Na+ channels open and the membrane depolarizes. (3) At the peak action potential‚ K+ channels open and K+ begins to leave the cell. At the same time‚ Na+ channels close. (4) The membrane becomes hyperpolarized as K+ ions continue to leave the cell. The
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What Are The Basic Problems Arising In International Trade Financing And How Do The Main Financing Instruments Help Solve Those Problems 1. Trade Financing Instruments The main types of trade financing instruments are as follows: a) Documentary Credit This is the most common form of the commercial letter of credit. The issuing bank will make payment‚ either immediately or at a prescribed date‚ upon the presentation of stipulated documents. These documents will include shipping and insurance
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as the Cold War. There were many conflicts between these two countries. Two problems faced by the United States during the Cold War is the Berlin Blockade and the Cuban Missile Crisis. The United States took actions against these two problems and which one of them is known as the Berlin Airlift which is a combat against the Berlin Blockade. The United States was successful in solving these two problems. One problem faced by the United States during the Cold War is the Berlin Blockade. The Berlin
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THE WORK DONE BY A CONSERVATIVE FORCE ALWAYS HAS FOUR PROPERTIES: 1. It can be expressed as the difference between the initial and final values of a potential-energy function. 3. It is independent of the path of the body and depends only on the starting and ending points. 2. It is reversible. 4. When the starting and ending points are the same‚ the total work is zero. The total mechanical energy ME = K + U is constant. Object moving in a uniform gravitational field gravitational a
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Potential Energy • Definition and Mathematics of Work • Calculating the Amount of Work Done by Forces • Potential Energy • Kinetic Energy • Mechanical Energy • Power An object can store energy as the result of its position. For example‚ the heavy ball of a demolition machine is storing energy when it is held at an elevated position. This stored energy of position is referred to as potential energy. Similarly‚ a drawn bow is able to store energy as the result of its position. When assuming
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Describe the problems faced by migrants travelling west to Oregon and California. (9 marks) There were many problems faced by migrants travelling west to Oregon and California which we know of‚ and these problems were more or less life-threatening. Most people ask why these migrants bothered to travel knowing the risks and more than likely consequences. Most Migrant’s and settler’s decisions were effected by push and pull factors‚ some which give no other option to these people but to move. The
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Diversification is a corporate strategy to enter into a new market or industry which the business is not currently in‚ whilst also creating a new product for that new market. This is most risky section of the Ansoff Matrix‚ as the business has no experience in the new market and does not know if the product is going to be successful. Restructuring is the corporate management term for the act of reorganizing the legal‚ ownership‚ operational‚ or other structures of a company for the purpose of making
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What Were the Main Problems that the Tsar Faced up to 1905? Russia was faced with a Revolution in 1905‚ through a chain of events leading up to it. With the economic instability‚ poor working conditions and the growing discontent of the people‚ the demand for reformation and revolution soon arose.. The ever rapidly increasing population of Russia outlined a new milestone for the empire. A population increase demands more from the economy and requires a higher effort to please the entire nation
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PETER SANDERS PHOTOGRAPHY Peter sanders was born in London in 1946. His professional career in photography began during the mid-sixties where he photographed the most of the major stars in the music business including Bob Dylan‚ Jimi Hendrix‚ The Doors‚ The Who‚ and the Rolling Stones etc. in 1970’s‚ Sanders’ attention turned inward which set him on a spiritual search to India and then eventually to the Muslim World where the spiritual beauty of Islam left indelible impression upon him. After his
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UNIVERSITY ENTRANCE EXAMINATION PHYSICS Duration : 2 hours Please read the following instructions carefully. 1. This paper is made up of 50 Multiple-Choice questions and comprises ELEVEN (11) printed pages. 2. Do not write on the question paper. 3. Answer all questions and indicate your answers on the answer sheet provided. Marks will not be deducted for wrong answers. 4. Do not take any paper‚ including the question paper or unused answer sheets‚ out of the examination
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