January 2011 Math Anxiety: Fertilizer Calculations Y OU MAY KNOW people who suffer from math anxiety. They avoid situations where mathematics and calculations are required. However‚ avoiding math is simply not an option when working with agriculture. The International Plant Nutrition Institute (IPNI)... in cooperation with university specialists...has recently published a “how-to” workbook that presents commonly used mathematical concepts in agriculture. It begins with simple arithmetic
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Sound A. What is the definition of Sound? Sound is everything that a person‚ animal or computer can hear. It can be created in a countless number of ways and occurs from anything as simple as tapping on a table. All sounds are a series of vibrations that travel through a medium in all possible directions. The cause of sound is the vibration of an object; once the item vibrates the sound waves then radiate outwards until they are either stopped or they die out. A sound wave has three characteristics:
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g|2.2 g| 1 Rimadyl Pill|2 g|2.1 g| Data Table 5 – Density measurements |Mass A|Mass B|Mass A - B||| Object|GraduatedCylinder + Substance|GraduatedCylinder|Substance|Substance Volume|DensityM/V| Water|21.7 g|16 g|5.7 g|5 mL|1.14 g/mL| Isopropyl alcohol|21 g|16 g|5.0 g|5 mL|1 g/mL| Saturated salt solution|22.6|16 g|6.6 g|5 mL|1.32 g/mL| The salt solution should be of greater density than that of pure water. Data Table 6 – Densities of irregular objects |A|B|B - A||| Object|GraduatedCylinder
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In this lab‚ there was a comparison between accuracy and precision of densities measured by volume. Mass measurements are often used units in the metric system. Volume can be examined a borrowed unit. The volume measurements were made in mL. Every measurement had a level of hesitancy affiliated with it. The experiment could feel uncertain from the object used for measurement and from the accuracy of the person doing the measuring of the volume. Because of this uncertainty‚ the experiment must be
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the gas‚ liquid‚ or solid phase. In order to separate or remove one or more of the component from its original mixture‚ it must be contacted with another phase. The two-phase pair can be gas-liquid‚ gas-solid‚ liquid‚ or liquid-solid. Absorption When the two contacting phases are a gas and a liquid. A solute A or several solutes are absorbed from the gas phase into a solid phase. Distillation A volatile vapor phase and a liquid phase that vaporizes are involved. Liquid-liquid Extraction
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• To determine the molecular mass of an unknown volatile liquid using the Dumas method and the ideal gas law. Background: In the early 19th century‚ Jean-Baptiste Dumas‚ a distinguished French chemist‚ created a relatively simple method for determining the molecular mass of a volatile substance. In this experiment we will use a modified version of his technique to determine the molecular mass of an unknown volatile liquid. The density of a gas is given by the ideal-gas equation as‚ Dgas =
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water occurs when the molecules in a liquid state absorb enough heat energy to vaporize into a gas. The heat energy‚ which causes the molecules to move‚ is called kinetic energy. The water molecules remain the same during this change‚ except that they’re moving much more quickly and their energy increases due to that movement. If you remove the energy by cooling the gas‚ then the gas condenses back into a liquid. Take away even more of the heat energy‚ and the liquid will solidify. This is what causes
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air in midlevels you could be talking about any type of supercell. - Compressional warming will reduce processes. Another reason why HP’s tend to help in the strength of the RFD because those parcels tend to be saturated so they have to evap that liquid as they fall. - Because precip is most sig in RFD of HPS the RFDS of HPS tend to be strongest because adiabatic compression is opposed most efficiently by evap cooling in HP supercells. *** - Process of adiabatic compression is opposed by evap
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management systems offer total inventory control. With these systems and the modular functionality of the Servo gauges‚ you are provided with on-line information including: • • • • • • • Accurate liquid levels Accurate interface levels Accurate product and vapor temperature Volume Mass Temperature and density profiles Alarms All measured and calculated data and parameters are available for higher level systems (DCS‚ MIS‚ etc.) via an extended number of communication protocols. Outstanding Accuracy
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Experiment 7: Relative Density Laboratory Report Marella Dela Cruz‚ Janrho Dellosa‚ Arran Enriquez‚ Alyssa Estrella‚ Zacharie Fuentes Department of Math and Physics College of Science‚ University of Santo Tomas España‚ Manila Philippines Abstract The experiment was conducted to show the different methods on how to determine an object’s composition through its density and to determine an object’s density by displacement method and the Archimedes Principle. Results show that. The materials
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