Surface Tension of Water I. Purpose How does adding soap to water change its surface tension? II. Background Adhesion is the bond between two substances of different makeups. In water‚ adhesion allows it to stick to other surfaces. Cohesion is the bond between two of the same substances. A hydrogen bond is a type of cohesion in water in which the hydrogen atoms of one water molecule being attracted to the oxygen atom of another water molecule. In water‚ each molecule in the middle is pulled
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a piston‚ the initial volume being 0.05 m3. Calculate the work done by the fluid when it expands reversibly: a. at constant pressure to a final volume of 0.2 m3; b. according to a linear law to a final volume of 0.2 m3 and a final pressure of 2 bar; c. according to a law Pv = constant to a final volume of 0.1 m3; d. according to a law Pv3 = constant to a final volume of 0.06 m3; e. according to a law‚ P = (A/v2) – (B/v)‚ to a final volume of 0.1 m3 and a final pressure
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Graphs‚ Groups and Surfaces 1 Introduction In this paper‚ we will discuss the interactions among graphs‚ groups and surfaces. For any given graph‚ we know that there is an automorphism group associated with it. On the other hand‚ for any group‚ we could associate with it a graph representation‚ namely a Cayley graph of presentations of the group. We will first describe such a correspondence. Also‚ a graph is always embeddable in some surface. So we will then focus on properties of graphs
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The volume of one mole of gas under conditions of room temperature and pressure Data collection and processing Quantitative data in table with units and uncertainties | Mass of Magnesium(Mg) (g) | Volume of Hydrogen (H₂) (cm³) | 1st trial | 0.040 | 39.9 | 2nd trial | 0.040 | 40.3 | 3rd trial | 0.035 | 36.5 | Quantitative data: The Magnesium was silvery-white‚ lustrous and relatively flexible before being placed in the burette. Whilst reacting with the hydrochloric acid‚ it dissolved
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they weigh the same. What is this difference? The relationship between the lead and feathers is expressed by the physical property called density. Density is defined as the ratio of a substance’s mass to the volume it occupies. Density (g/mL) = Mass (g)___ Volume (mL) In this laboratory exercise‚ you will be using skills and techniques learned earlier to determine the identity of different substances. To determine the precision of your technique‚ you will calculate the
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33yd | Lab. Manual: Length | 271cm | 2.71m | 10.20in | 0.28yd | Lab. Manual: Width | 208cm | 2.08m | 8.60in | 0.24yd | B. Graduated Cylinder Volume reading when graduated cylinder is half filled with | (mL) | Potassium permanganate(KMnO4) | 12.6mL | Distilled Water (H2O) | 12.3mL | | Capacity of Apparatus (maximum volume contained) | Big test tube | 18.8mL | 250-mL Beaker | 50mL | C. Pipette Pipettes | Drawing of a part of the scale | Accuracysmallest known
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As geologists‚ we examine layers of sediment on the Earth’s surface to approximate the dates of past geologic time periods. Ah sediment as you know is material like sand‚ gravel‚ fossil fragments that is transported by natural processes like wind ‚ water flow or the movement of glaciers. So sediment is transported and then deposited and it forms layers on the Earth’s surface over time. We examine these layers to learn about different geologic time periods including when they began and ended. For
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gravity and the type of surface was tested through a series of experiments. In lab 4.1‚ the force of gravity was tested through various surface types‚ including: tabletop‚ waxed paper‚ paper towel‚ fine sandpaper‚ and coarse sand paper. In lab 4.2‚ two different surface types that were tested included: tabletop and coarse sand paper. This lab compared the two averages between both tabletop and coarse sandpaper using different amounts of blocks. In lab 4.3‚ the surface area of the blocks sliding across
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Sculpting the Earth’s Surface The Grand Canyon The state of Arizona is home to one of the most breath taking canyons known to Earth‚ the Grand Canyon. Its astounding depth and extravagant size are both mouth dropping and catching to the public’s eye. It is one of the world’s most popular tourist’s attractions that lour millions of people from all over the world every single year. With its deep color‚ size and beautiful display of rock layers‚ the Grand Canyon is a view few people will not forget
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Traffic Volume Study Road-Traffic Studies Part One CE-452 TRANSPORTAION ENGINEERING SESSIONAL II Traffic Volume Survey List of Content 1. Introduction 2. Scope and Objectives 3. Methodology 4. Data collection 5. Data analysis 6. Conclusion Chapter One Introduction 1.1. Traffic Survey: Traffic engineers and planners need information about traffic. They need information to design and manage road and traffic system. They use the information for planning and designing
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