affect the reaction rate are surface area‚ temperature‚ and concentration and pressure. Surface area is the exposed‚ outer layer of a solid. Increased surface area increases reaction rate because more particles on the surface of a solid come in contact with the particles of another substance. For example‚ if you place a donut stick into water‚ the donut will react slowly with the acid. This is because the acid only comes in contact with the particles on the surface of the donut. But‚ if you crush
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After performing this experiment‚ it was found that the surface the chocolate was placed on could make a major difference. The hypothesis that was made had mostly incorrect predictions‚ but with some correct ones. It was found that using the palm of one’s hand was the best surface on which to melt chocolate‚ as was predicted. It melted so far‚ and so fast‚ that the experiment had to be altered. Coming in second place was the surface of black paper‚ something that was not expected. The black
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Road Safety Lab Report Research Question: How is the stopping distance affect by the surface area of an object? Variables: Independent variable: The Different Surface Area (0cm2‚ 1760cm2‚ 2480cm2‚ 3440cm2‚ 3920cm2) Dependent variable: Stopping Distance Controlled variables: Mass of Object Environmental Conditions (Hallway Atmosphere) The surface of the road (Marble) The type of wheels (plastic) Height of the Ramp Background Information: The aerodynamics of an external object
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Friction on a surface. Aim: To establish the relation between weight of a rectangular wooden block lying on a horizontal table and the minimum force required to just move it using a spring balance Materials required: A rectangular block of wood with a hook ‚ set of weights‚ strong thread and a spring balance. Theory: The force of friction acting on a block of wood is proportional to the normal reaction acting on the block. By the third law of motion‚ normal reaction is equal to the weight
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A cylinder is a shape with a circular bottom at the both ends that kind of looks like a pringles potato chip bottle THE formula of finding the volume of a cylinder is base area times height of cylinder. The base area will be the area of the circle which is pi x radius x radius So you just take that answer and multiply it by the height of a cylinder. done math math math cylinder cylinder asdfghjk lkjhgh jhgf ghjxskdskdgc kdshfkhshfkshksskkkkjs wordlimit mine is
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1. SURFACE RUNOFF INTRODUCTION: Runoff means the draining or flowing off of precipitation from a catchment area through a surface channel enters into a stream channel. It is convenient to visualize three main routes of travel; overland flow (air hujan limpahanpermukaan)‚ interflow‚ and ground water flow (air dari punca bawah tanah). 1 Runoff results from rainfall occurrence in a hydrologic catchment. Rainfall-runoff relations are Interflow/subsurface and base flow/groundwater flow
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Topic Selection Microsoft recently unveiled its prototype‚ Surface‚ their version of a tablet or alternative device to a personal computer. It is questionable how Microsoft‚ a known software company‚ will be able to manufacture and sell a tablet device that is a contender in the marketplace against devices such as the iPad. Thesis: It is critical that Microsoft produce a device that overcomes the limitations of its competitors and adds features that set it apart‚ in order to define itself in
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An Understanding of the Concept of a Three-Dimensional Cubes and Surface Area in the Classroom Written by Vanessa Kinsey There are several uses in our daily lives that involve calculating the area of objects or places. Many of these daily recurring calculations require using acquired skills to figure out the area of three-dimensional objects. When introducing the concept of surface area to 5th and 6th grade students‚ they need to first know what three-dimensional objects look like and understand
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CNBC Investopedia. (2011). Retrieved from http://www.investopedia.com/terms/c/currentratio.asp Investopedia Investopedia. (2012). Retrieved from http://www.investopedia.com/terms/r/returnonequity.asp#axzz28ZHmfXpq Investopedia. (2012). Price-earnings ratio. Retrieved from http://www.investopedia.com/terms/p/price-earningsratio.asp Investopedia Investopedia. (2012) Retrieved from http://www.investopedia.com/terms/e/earnings-power.asp#axzz28ZHmfXpq Investopedia. (2012) Retrieved from http://www.investopedia
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have the same volume as the original model. Q1. Use a piece of A4 paper to make a box with a length of 10cm and a width of 3cm. Then find the volume of the box and the total surface area of the paper used to make the box. T.S.A: 5 rectangles and 4 squares 5 x L x W + 4W = 5 x 10 x 3 + 4 x 9 = 186cm Volume: 5 rectangles and 4 squares L x W x H = 10 x 3 x 3 = 90cm Q2. Make another box with the same general shape‚ but chose a different length and width. Then find the volume of the box and
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