at least have to pick r and h such that pi r^2 h = 355. That means h = 355 / (pi r^2). The surface area of a cylinder is the top (pi r^2) plus the bottom (also pi r^2) times the lateral side (2 pi r h). So the total surface area is 2 pi r^2 + 2 pi r^2 + 2pi r h‚ or 4 pi r^2 + 2 pi r h. Substitute h = 355 / (pi r^2) into this to get the surface area in terms of just r. Now that you have the surface area in terms of just r‚ you can find the value of r that minimizes this by taking the derivative
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| | | | | | | | | The Erosion Process1. Water. Erosion from water typically occurs in the following ways. a. Raindrop Splash and Sheet Erosion. The first step in the erosion process begins as raindrops impact the soil surface. Raindrops typically fall with a velocity of 20-30 feet per second. The energy of these impacts are sufficient to displace soil particles as high as two feet vertically. In addition‚ the impact of a rainfall on a bare soil can compact the upper layer of
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Properties Henry Hartono Gunawan 1 INTRODUCTION The use of Greywater for landscaping irrigations is becoming common as Western Australia is experiencing the water restriction due to the current drought condition and critically low level surface water storage. Hence‚ the reuse of Greywater can utilise the on-site resource‚ conserve the water efficiently‚ and reduce the load on wastewater disposal system. As there is still lack of information regarding the effect of surfactants‚ which are
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large scale schemes are necessary for soil reclamation in ravines and badlands of Madhya Pradesh‚ Uttar Pradesh‚ Gujarat and Rajasthan. Several such schemes involving plugging of gully mouths‚ construction of bunds across the gullies‚ leveling of surface‚ a forestation‚ and restriction on over grazing are under implementation in these states. In Madhya Pradesh the World Bank has given an assistance of Rs. 300 million to reclaim about 1 lakh ha of ravine land. (ii) Control of Floods-In India the problem
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LOOK AT PAGE 9 IN NEW TEXTBOOK FOR DIAGRAM Definitions: Evaporation-Process by which liquid water is transformed into water vapour. Evapotranspiration-The total amount of moisture removed by evaporation and transpiration from a vegetated land surface. Base Flow-Slow transfer of water through rocks. Infiltration-The passage of water into the soil. Takes place relatively quick at the beginning of a storm but as the soil becomes saturated infiltration rates fall rapidly. Interception-When vegetation
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of the potato: 14.81 bars Work: Solute potential: (ψS) = – iCRT = (-2)(.3)( 0.0831)(297)=14.81 bars Water potential: ψ = ψP + ψS = = water potential= 0 + 14.81= 14.81 LAB PART 2 Part 1: What factors limit cell size? 1. What is surface area? Area of given surface 2. What is volume? Area inside a shape 3.
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leakage of red pigment from a beetroot cell and the surface area. To do this successfully I will need to alter the surface area of the beetroot cells accurately and then measure if any and how much dye is let out. I can hopefully then look at my results and then find a relationship between the two factors and be able to explain exactly why any changes took place. PREDICTION For this experiment I would expect the leakage of dye to increase as the surface area increases and this is based on the knowledge
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physically based model developed by the United States Department of Agriculture (USDA)‚ operates at a daily time step. This model has been developed on a physical‚ semi-distributive‚ scale-basin basis for continuous time and with emphasis on soil surface processes. SWAT’s sub-watersheds are divided into hydrological response units (HRUs) that have unique combinations of slope‚ land use‚ and soil type within the sub-basin and form the basic land segment for computing flow and transport. The spatial
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of viral genome-->late gene expression->assembly of viral progeny-->exit 2. Concept 2.1- Virus entry is a multistep process with the ultimate goal of delivering viral genome (payload) into the cells. A. Binding to surface receptors- - a viral receptor is cell surface molecule‚ likely a transmembrane protein - a virus may need multiple receptors to enter the cell -the ability of viruses to infect certain cells but not others are typically due to the fact that only the "permissive cells"
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CMT3321 – Week 19 – Sample Exam Question Question (a) Describe the key features of Tangible User Interfaces‚ comparing and contrasting them with multi-touch interactive surfaces. [ 10 marks ] (b) Consider the following scenario: The Tangible Disaster Simulation System is a collaborative tool for planning disaster measures based on simulations of disasters and responses such as evacuation and the actions of emergency services. Users can define parameters of a disaster (such as its scale
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