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‚ stetting it equal to 0‚ and solving for r. Use that to find h. You’ll find that the dimensions are different from an actual soda can‚ but I’m sure you can think of why this is the case. THE MATH PROBLEM: The surface area of a cylindrical aluminum can is measure of how much aluminum the can requires. If the can has a radius r and a height h‚ its surface
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seem more suitable than hydrogen. The possibility of hydrogen as a fuel is ever increasing‚ with the advantages outweighing the disadvantages more every year. Car manufactures are already making cars that are hydrogen powered‚ although they are either prototypes or extremely limited production runs‚ but cars such as the Honda Clarity prove that hydrogen powered cars really are not a thing of the future‚ but a thing of the present. ABOVE: The Honda Clarity‚ the first hydrogen powered car to have a
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Ocean County College Department of Chemistry Identification of Metallic Ions Purpose: The purpose of this lab exercise was to perform and observe the flame tests of some alkali and alkaline earth metal ions. When electrons in metallic ions are grounded‚ their configuration is stable. In other words‚ the loosely bound electrons in the valence shell of the atom are satisfied at their “low” energy state. They do not require to be balanced by emitting any type of radiation or receiving any
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2 OBJECTIVES We students taking Additional Mathematics are required to carry out a project work whilewe are in Form 5. This year the Curriculum Development Division‚ Ministry of Education hasprepared four tasks for us. We are to choose and complete only ONE task based on our area of interest. This project can be done in groups or individually‚ but each of us are expected tosubmit an individually written report. Upon completion of the Additional Mathematics ProjectWork‚ we are to gain valuable experiences
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Important Ions in the Body and the Roles They Play Everyday Functions of the Human Body The human body uses many forms of energy to conduct daily activities. These activities can be ones that we are doing physically or they can be as basic as the breakdown of enzymes within our body or the digestion of food. Chemical energy‚ electrical energy‚ mechanical energy‚ and electromagnetic energy are a few but important forms of the type of energy utilized by the human body. Ions play an important
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Ion Exchange Chromatography Discussion: The first exercise preformed in this lab was ion exchange chromatography. The purpose of this experiment is to separate molecules based on their differences in charge. Since it is based on charge the amino acids in the cation exchange column‚ if negatively charged‚ flow through the column first because they don’t want to bind to the sodium ions. The positively charged ions will elute last at the highest ph because they bind to the negatively charged beads
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Lab Report Name: Amanda Andrews Section: Lab 6 CHM 130 Experiment: Identification of Metallic Ions Metallic ion Flame color Sodium Na+ Orange Strontium Sr2+ Pink/Red Potassium K+ Light blue/Purple Barium Ba2+ Yellow Copper Cu2+ Green Lithium Li+ Pink Calcium Ca2+ Pink/Orange Unknown Pink/Red - Strontium QUESTIONS: A - All chemical used in this test are binary compounds. What portion of the periodic table is responsible for the color
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Electrochemical production of hydrogen from water Presented by: Heba A. Alsabagh Hiba M. Maghayreh Hiba N. Abu Zaghleh Sahar M. Alissa University of Jordan Faculty of Engineering & Technology Department of Chemical Engineering Supervised by: 0078381 0076527 0076528 0072918 Dr. Hatem Alsyouri December‚ 2011 Chapters: Introduction Literature Survey Process Selection and Design Process Description Material and Energy Balances Design 2 Chapters: Feasibility Study
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Aluminum GuttersOf all the types of gutters to choose from‚ there is a very good reason why aluminum dominates the gutter market. The metal is corrosion-resistant‚ lightweight‚ easy to work with‚ available in wide range of colors‚ and less expensive than the other alternatives. Copper GuttersCopper gutters will not hold up that much better or last longer than aluminum gutters for the added cost. There are certain long term and short term advantages to copper gutters‚ as long as they are installed
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served as the basis for determining the goods and services to be included in the basket of the Consumer Price Index (CPI). It was also used to represent the expenditure pattern of households in Malaysia. However‚ over the years‚ demand for data from the survey has increased and it is now used for several purposes. HES has becomes an invaluable source of information for government and private sectors‚ researchers and university students. PART A Family Monthly Income and Its Monthly Allocation
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