92 U E 234 90 Th 3. A compact disc of diameter 120 mm is spinning at a speed of 500 revolutions per minute. Which of the following is closest to the linear speed of the outer edge of the disc? A 0.50 m s–1 B 1.0 m s–1 C 1.6 m s–1 D 3.1 m s–1 E 60 m s–1 4. A steel wire is stretched and clamped between two fixed points that are spaced 1.0 m apart. Which of the following is closest to the fundamental wavelength that can exist on this wire? A B C D E 5.
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which cell has the larger resting membrane potential? Explain. If the permeability to K is higher in A than in B‚ then the resting membrane potential (rmp) will be closer to the equilibrium potential in cell A‚ which means the rmp will be more negative in cell A than in cell B; or in other words‚ the potential difference will be LARGER in cell A. 2. Predict the effect of a reduced extracellular concentration of Na+ on the magnitude of the action potential in an electrically excitable cell. If there
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Redox potential – CV Acetonitrile Adjusted sensitivity Each ;line represents diff scan rates all been overlayed on one digarm Scan rates ranged from 0 .1 s-1 to 1 Peak due to iodide oxidation is read from +peak to – peak bottom line. Iodide to triiodide Glycol Didn’t work Using equation ip = 2.69 ×105 n3/2 A D1/2 C ν1/2 compare to linear equation y = mx+c y = peak current x = V1/2 c = zero Therefore m is = everything else C = concentration 0.05 M ethylene glycol (acetonitrile
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Nestle is one of the biggest multinational companies in the world offering fast moving consumer goods (FMCG) such as Milo. Nestlé’s Slogan‚ “Good Food‚ Good Life” reiterates what they stand for in delivering qualitative products to the end-user being their main objective. The fundamental aim of Nestle is to increase profits however at the same time‚ raise the standing of living and quality of life for everyone by continually providing nutritional products to promote a healthier lifestyle for all
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A graded potential in physiology‚ is described as local changes in membrane potential that occur in varying grades or degrees of magnitude or strength. When compared to graded potential‚ an action potential is described as brief‚ rapid‚ large (100mV) changes in membrane potential during which the potential actually reverses so that the inside of the excitable cell transiently becomes more positive than the outside. As with a graded potential‚ an action potential involves only a small portion of
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on it for survival. The earth’s surface is 70% water and we must protect it‚ I believe we can do this through civic engagement of community. More specifically‚ the Puyallup Watershed initiative. In this paper‚ I will argue why I firmly believe civic environmentalism is the answer to the Puyallup Watershed Initiative. To begin with‚ communities are not monolithic and most have differences in structures when it comes to race‚ class‚ gender and power structures. None the less‚ a community is defined
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The Housing First Initiative 1 The Housing First Initiative: A Plan to End Homelessness Lissa Sellew Introduction to Human Services‚ BSHS302 Therez Moya June 16‚ 2008 The Housing First Initiative 2 Abstract The Housing First Initiative is a systematic method to end and prevent the reoccurrence of homelessness. The ideology behind Housing First is that homeless participants focus on obtaining permanent housing as a first step and work towards achieving goals towards
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Walgreens POWER Initiative In 2009 Walgreens announced its plan to implement its POWER Initiative‚ with an expected completion by the third quarter of 2009. The POWER Initiative provides workload balancing that offloads dispensing duties from individual Walgreens pharmacists to centralized processing centers. The initiative is a way for Walgreens to make the transition into a community-practice model of pharmacy in the retail setting. The new model would give pharmacists a chance to counsel patients
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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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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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