atomic-structure research. Use specific examples from this lesson in your answer to support each position. (6 marks) Answer: 2. The emission spectrum of an unknown element contains two lines-one in the visible portion of spectrum and the other‚ ultraviolet. Based on Figure 1.1 and on what you have learned about Niels Bohr’s model of atom‚ account for the difference in energy between these lines. (3 marks) Answer: The line which is on the visible portion of spectrum is produced when electron is
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the most distinguished American picture book for children by the American Library Association. The 1986 recipient was The Polar Express‚ written and illustrated by Chris Van Allsburg‚ published in 1985. “In a true picture storybook‚ the pictures and the text work go hand-in-hand: we can’t have one without the other” (Russell‚ 103). Through his illustrations in The Polar Express‚ Van Allsburg demonstrated conventions of picture art‚ design and meaning‚ and artistic media style. Convention of Picture
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expression for the shear stress. [4 marks] b) An ice hockey puck traverses the ice on a thin sheet of water. A puck struck by an ice hockey player Initially travels at a speed of 20 m/sec‚ the thin layer of water between the puck and the ice has a thickness of 0.2 mm calculate the shear stress if the viscosity of the water is 0.0018 kg/m sec. [8 marks] A puck has an approximate diameter of 80 mm‚ calculate the initial drag force on the puck. [5 marks] c) In the figures below
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Reverend John Hale A scholar from Beverly‚ Reverend Hale comes to Salem on Reverend Parris ’ request to investigate supernatural causes for Betty Parris ’ suspicious illness and thus instigates the rumors of witchcraft. Hale approaches the situation precisely and intellectually‚ believing that he can define the supernatural in definitive terms. Despite his early enthusiasm for discerning the presence of witchcraft in Salem‚ Hale soon grows disillusioned with the witchcraft accusations that abound
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Problem Solutions 1. Use the following business rules to create a Crow’s Foot ERD. Write all appropriate connectivity’s and cardinalities in the ERD. 1.a. A department employs many employees‚ but each employee is employed by one department. 1.b. Some employees‚ known as “rovers‚” are not assigned to any department. 1.c. A division operates many departments‚ but each department is operated by one division. 1.d. An employee may be assigned many projects‚ and a project may have many employees
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Manar Persuasive Essay Chris Lauture Period 2‚ Ms. Vough Going through life what would you do if your child had a disease or some sort of injury during birth? If so what would you do to save it or help your infant out? Well this has happened to a little girl by the name of Manar. On February 19‚ 2005‚ 10-month-old Manar underwent a successful 13-hour surgery in Egypt. The under developed conjoined twin‚ Islam‚ was attached to Manar’s head and was facing upward. Islam
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p IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI Chemistry Higher level and standard level Specimen paper 1s‚ 2s and 3s For first examinations in 2009 CONTENTS Chemistry higher level paper 1 specimen paper Chemistry higher level paper 1 specimen markscheme Chemistry higher level paper 2 specimen paper Chemistry higher level paper 2 specimen markscheme Chemistry higher level paper 3 specimen paper Chemistry higher level paper 3 specimen markscheme
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pigeon box) Instructions: This is an individual assignment. Answer both Section A and Section B. Your answers MUST be in written form. Marks will be deducted if printed copies‚ photocopies or electronic formats are submitted. Please submit only the answer sheet with your name and student ID on it. Marks will be deducted for late submission. Section A (6 marks) 1. What is the definition of mass? A. How much something weighs. B. How hard something pushes on the ground. C. Resistance
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Since Phillip’s absence a noticeable hush seemed to have taken up residency in the Spencer home and it beset itself upon the home’s inhabitants like a stubborn sore that refused to heal. Over the course of the two weeks that had come and gone since the boy’s disappearance the only ruckus of commotion which had been bestowed upon the normally busy household had come from the non-stop harassment of those in the media wanting to talk about Phillip‚ and the latest sudden quietness from them suggested
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Can we save the Polar bears? Imagine that you are a child waking up on crisp cool morning in a small village on the outskirts of Alaska. You stretch‚ throw on some clothes and go running outside. It’s summer‚ the days are long‚ and you have a lot planned. You are what is considered a local‚ you were born in Alaska‚ so were your parents and their parents. One of your favorite things to do is hunt Polar bears. You are used to the cold temperatures‚ the ice and the snow. Then one day in your early
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