EXERCISE 6 1. A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25° downward from the horizontal. Find the work done by the shopper as she moves down a 50-m length of aisle. 1.6 kJ 2. A horizontal force of 150 N is used to push a 40.0-kg packing crate a distance of 6.00 m on a rough horizontal surface. If the crate moves at constant speed‚ find (a) the work done by the 150-N force and (b) the coefficient of kinetic friction between the crate and surface. 900J
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Land and water forms Material In addition to the material in exercise 1‚ the ten land and water forms models ‚ a set of cards of the ten major geographical land and water forms‚ plastic map‚ water jug‚ sponge‚ tray‚ mat. Exercise 2 – Matching models and cards Preparation For this exercise 2 pairs of land and water forms are presented at a time for e.g. the teacher decides to present island‚ lake‚ peninsular and gulf. 1. Invite the child. 2. Teacher shows the child where the materials
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Title: Mitosis and amount of time spent in each phase. Introduction: The cycle of a cell roughly doubles it volume of cytoplasm and duplicates its genetic information i.e. replicated DNA. Then it divides the genetic information equally into two daughter nuclei. The cell cycle can be divided into two phases interphase and mitotic phase. The time spent in these phases depends upon the type of cell and its particular developmental or physiological state. Cells comprising rapidly growing tissues
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Mitosis Under Microscope Lab Report A. The purpose of the investigation is to determine the time an onion cell spends in each part of the cell cycle. B. The significance of this investigation is to help us understand and know how long cells are undergoing mitosis. My personal interest is to know the phases of mitosis in cells in order to someday help find cures for cancer. C. The cell cycle is a chronological set of events‚ culminating in cell growth and division into two daughter cells. Some
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Exercise 1: Cell Transport Mechanisms and Permeability: Activity 1: Simulating Dialysis (Simple Diffusion) Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The driving force for diffusion is You correctly answered: b. the kinetic energy of the molecules in motion. 2. In diffusion‚ molecules move You correctly answered: a. from high concentration to low concentration. 3. Which of the following dialysis membranes has the largest pore size? You
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Topic: Human Cardiovascular Physiology- Blood Pressure and Pulse Rate Determination. Hypothesis: Exercise can raise the blood pressure and the pulse rate. Aim: To determine the effect of exercise on the blood pressure and the pulse rates of students in the class. Introduction: The blood pressure of a person is the force exerted by the blood on the walls of the arteries per unit area. The blood pressure unit is mmHg. The blood pressure of an individual is expressed in two ways‚ the systolic (due
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Plant hormones are specialized chemical substances produced by plants. They are the main internal factors controlling growth and development. Hormones are produced in one part of a plant and transported to others‚ where they are effective in very small amounts. Depending on the target tissue‚ a given hormone may have different effects. Plant hormones play an integral role in controlling the growth and development of plants. A plant hormone is generally described as an organic compound synthesized
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Unit 1 Exercise 1 Guido Libreros 0 Unit 1. Exercise 1. Local Exchange Course Objectives and Learning Outcomes In this Exercise‚ you will explain how data travels long distances in a real world example. Assignment Requirements Online gaming is big business these days‚ with thousands of people connected to each other every minute. Games like Call of Duty and World of Warcraft connect massive numbers of players‚ sending both data and voice communications back and forth in real-time. In a 1-2 page
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guidelines she does not need a referral from a physician for exercise clearance. Measures regarding examining body composition‚ cardiorespiratory fitness‚ muscular strength/endurance‚ and flexibility were taken. Based upon the results a moderate intensity (60%-70% HRR/VO2R) a Cardiorespiratory and Resistance training program was designed for Jane Doe. A negative caloric balance program was established based upon her current RMR and newly designed exercise prescription. Muscle strength and endurance programs
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The Copper Cycle Alexes Montalvo Chem 1500-10 September 26‚ 2012 The Copper Cycle Introduction: The Copper Cycle is a popular experiment used to determine if an element‚ in this instance‚ copper‚ reverts to its elemental form after a chain of reactions. This experiment is very dangerous because of the reactions between the strong acids and bases. In this experiment I performed a series of reactions starting with
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