calculating the mass and dividing it by the volume to get the density‚ then compare densities. 44. A student has several different-size samples of substances I and II. She measures the masses and volumes of these samples and plots the graphs shown in Figure D page 67. Which substance has greater density? How do you know? 2 2 more dense because it doesn’t rise as fast as number one. 45. How can you determine the density of ice? Can you determine the volume of the ice by melting it
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reading h = 0.7 m‚ and depth L = 12 m. Q.2 (from Street‚ Watters‚ and Vennard) The weight density γ = ρg of water in the ocean may be calculated from the empirical relation γ = γo + K(h1/2)‚ in which h is the depth below the ocean surface‚ K a constant‚ and γo weight density at the ocean surface. Derive an expression for the pressure at any depth h in terms of γo‚ h and K. Calculate the weight density and pressure at a depth of 3.22 km‚ assuming γo = 10 kN/m3‚ h in meters‚ and K = 7.08 N/m7/2
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Main idea: Buoyancy of an object is determined by properties of the object as well as properties of the fluid surrounding it. density=mass/volume More dense at bottom The result of pressure exerted equally in all horizontal directions by water. Pressure at bottom greater than at top A substance that is able to take the shape of any container that holds it. If a density is less than that of water (or the liquid it is floating in) acts against buoyant force A buoyant force on an object is equal
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Laboratory Report Sheet Experiment # ___ Analysis of Milk Nova Isablel Agan March 8‚ 2013 Alethea Dapac Score: Objective: Apparatus: beaker‚ stirring rod‚ graduated cylinder‚ test tube‚ water bath‚ test tube holder‚ evaporating dish‚ dropper‚ filter paper‚ pH paper‚ tripod‚ funnel‚ Erlenmeyer flask‚ Chemical symbol: Procedure: [Preparation of 100 ml whole milk] * 50 ml of milk was placed in a beaker and was diluted with
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Compaction Courtesy of U.S. WICK DRAIN‚ INC. 1 1. Soil Improvement 2 1 1.1 Methods for Soil Improvement Ground Reinforcement • • • • • • • • • • • Stone Columns Soil Nails Deep Soil Nailing Micropiles (Mini-piles) Jet Grouting Ground Anchors Geosynthetics Fiber Reinforcement Lime Columns Vibro-Concrete Column Mechanically Stabilized Earth • Biotechnical Ground Improvement • Deep Dynamic Compaction • Drainage/Surcharge • Electro-osmosis • Compaction grouting • Blasting • Surface
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March 4‚ 2010 Egg Buoyancy and Density: Can you make an egg float by changing the density of water? If you put an egg in tap water‚ it will sink to the bottom. If you add enough salt‚ the egg will float to the surface. Density is the mass or volume of an object. It’s easier to think of it as the thickness of the object. Buoyancy is the force that allows an object to float. I performed a fun experiment to see how increasing density of water could make an egg float or submerge.
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mass‚ length‚ and temperature of a wide variety of items. To learn how to calculate density and concentration of dilutions. Procedure: I used a ruler‚ thermometer‚ and scale to take measurements. I used a graduated cylinder‚ short step pipet‚ scale‚ and ruler to determine volume and density. I used a volumetric flask‚ graduated pipet‚ pipet bulb‚ scale‚ and glass beaker to determine concentrations and densities of various dilutions. Data Tables: |Data Table 1: Length
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calibrated by just weighing the water they deliver. As for volumetric flask‚ the weight of an empty flask is recorded. Next‚ weigh the flask after filling it with water to the mark. After that‚ it is crucial to convert the mass to volume. The water density at a temperature will aid this process. The compliance of the Volume Occupied by 1.000g of Water Weigh in Air table is deemed necessary throughout the comparison. In order to obtain the true volume of volumetric glassware holds‚ this formula will
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Archimedes’ Principle The buoyant force on a submerged object is equal to the weight of the fluid displaced. This principle is useful for determining the volume and therefore the density of an irregularly shaped object by measuring its mass in air and its effective mass when submerged in water (density = 1 gram per cubic centimeter). This effective mass under water will be its actual mass minus the mass of the fluid displaced. The difference between the real and effective mass therefore
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inside a bubble 4.0 m below the surface of the liquid. Density of alcohol = 806 kg m-3 1.4 atm Figure 1 Figure 2 4. Blaise Pascal duplicated Torricelli’s barometer using a liquid of density 984 kg/m3 as the working liquid (Fig. 3). What was the height h of the liquid column for normal atmospheric pressure? 10.5 m 5. A frog in a hemispherical pod finds that he just floats without sinking in a fluid of density 1.35 g/cm3. If the pod has a radius of 6.00 cm and negligible
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