HW 1 solutions Point Charge in One Dimension A point charge q1 = -3.5 μC is located at the origin of a co-ordinate system. Another point charge q2 = 5.1 μC is located along the x-axis at a distance x2 = 9.3 cm from q1. 1) What is F12‚x‚ the value of the x-component of the force that q1 exerts on q2? -18.57 N For all of these problems we want to make use of the standard electric force equation: ̂ So for this problem with K=9*109 Nm2/C2‚ Q1=-3.5μC‚ Q2=5.1 μC‚ and r=9.3 cm we get F=-18.57
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The Gallant Charge of the 54th Massachusetts (Colored) Regiment In United States’ history‚ there has never been a battle as influential and graphic as the Civil War (1861-1865). It was a revolution in several aspects‚ especially in media‚ becoming responsible for the first great surge of artistic representations during events of its time. Several of these depictions included certain aspects of the war such as the literal battlefield‚ fugitives and death--all of which is portrayed in The Gallant
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of Gaseous Exchange Surfaces in Humans‚ Fish‚ Insects and Frogs Gaseous Exchange is a biological process where oxygen diffuses into the body or bloodstream and carbon dioxide diffuses out of the body or blood stream. This process is different for Humans‚ Fish. Frogs and Insects. Humans: In humans the gas exchange system is known as the Respiratory system. The respiratory surface is the Alveoli located on Bronchial tubes inside of the lungs. The average human adult has about 600 million alveoli
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The cell is the fundamental structural unit of all living organisms. Some cells are complete organisms‚ such as the unicellular bacteria and protozoa; others‚ such as nerve‚ liver‚ and muscle cells‚ are specialized components of multi-cellular organisms. Cells range in size from the smallest bacteria-like mycoplasmas‚ which are 0.1 micrometer in diameter‚ to the egg yolks of ostriches‚ which are about 8 cm (about 3 in) in diameter. Although they may differ widely in appearance and function‚ all cells
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Temperature on Membrane Permeability of Beetroot Name: Ghazal Daneshfar E-mail: GDANES200@caledonian.ac.uk Student ID: S1312108 INTRODUCTION The cell membrane consists of mostly phospholipids and proteins which gives the cell its selectively permeable nature. The function and permeability of the cell membrane depends on its whole structure. When destroyed‚ the permeability of the cell membrane is disrupted causing cellular contents to leak out. When cells are cut‚ the cell membranes are mechanically
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CELLULAR PHONES HAS EVOLVED How Cellular Phones Has Evolved Norvell Golden UVOCORP January 4‚ 2013 Years ago cellular phones offered very limited coverage area for users. The design and function have come from big and ugly to now‚ tiny and flamboyant. It does not take a scientist to realize how cellular phones have evolved into a multi-function appliance. Retailers utilize technology and their creative vision to attract the cell phone consumers. The market for cell phones has increased because
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Affirmative Action Has Outlived Its Usefulness The goal of affirmative action is to compensate for past injuries which minorities endured. Affirmative action gives special privileges to minorities based solely on the color of their skin‚ not on their abilities or their financial situation. The goal of affirmative action is to remedy the injuries caused by discrimination. Yet after analyzing affirmative action one could determine that it seeks to cure discrimination with more discrimination.
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NATIONAL ROAD TRANSPORT POLICY Introduction 1.1 Road transport is vital to economic development‚ trade and social integration‚ which rely on the conveyance of both people and goods. Reduction in transport costs promote specialization‚ extend markets and thereby enable exploitation of the economies of scale. Global competition has made the existence of efficient transport and logistic systems in delivery chain an absolute imperative. Easy accessibility‚ flexibility of operations‚ door-to-door service
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Membrane Behavior Lab Abstract: Introduction: The permeability of a cell to solutes in an aqueous medium depends upon the physical and chemical make–up of the membrane. The maintenance of the living cell depends upon the continued presence and functioning of a selectively permeable membrane. If the nature of the membrane is changed or altered in any way‚ this may well affect its permeability and thus the properties of the cell of which it is a part. Irreversible changes in the permeability
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Cell Respiration Respiration is the process by which organisms burn food to produce energy. The starting material of cellular respiration is the sugar glucose‚ which has energy stored in its chemical bonds. You can think of glucose as a kind of cellular piece of coal: chock-full of energy‚ but useless when you want to power a stereo. Just as burning coal produces heat and energy in the form of electricity‚ the chemical processes of respiration convert the energy in glucose into usable form. Adenosine
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