Friction on a surface. Aim: To establish the relation between weight of a rectangular wooden block lying on a horizontal table and the minimum force required to just move it using a spring balance Materials required: A rectangular block of wood with a hook ‚ set of weights‚ strong thread and a spring balance. Theory: The force of friction acting on a block of wood is proportional to the normal reaction acting on the block. By the third law of motion‚ normal reaction is equal to the weight
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Surfaces and Guideways Introduction Basic Components Structural Design of Pavements Portland Cement Concrete Design Asphalt Concrete Pavement Design THE END Thank you Surface - the term surface refers to Roadway pavement which includes Portland Cement concrete‚ treated soil (gravel or other aggregate materials) and Asphalt concrete Guideway - A track along which Automated Transit Vehicles are guided. Guideway include monorails‚ concrete guideway for rubber tired vehicles and conventional duo-rail
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Surface area Surface area is the measure of how much exposed area a solid object has‚ expressed in square units. Mathematical description of the surface area is considerably more involved than the definition of arc length of a curve. For polyhedra (objects with flat polygonal faces) the surface area is the sum of the areas of its faces. Smooth surfaces‚ such as a sphere‚ are assigned surface area using their representation as parametric surfaces. This definition of the surface area is based on methods
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Surface Tension My problem was to find out how to test or measure surface tension. I think the reason of some of the force in surface tension is cohesion and gravity. Surface Tension is the condition existing at the free surface of a liquid‚ resembling the properties of an elastic skin under tension. The tension is the result of intermolecular forces exerting an unbalanced inward pull on the individual surface molecules; this is reflected in the considerable curvature at those edges where the
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Microsoft’s Surface Pro laptop-in-disguise1 tablet is no different‚ a “flawed”2 device which has seen improvements to its design and structure over the past few years making it slowly approach perfection. Microsoft’s Surface Pro is one of the newer innovative devices that was initially introduced in February 20133 and has seen a much shorter succession cycle than that of any other popular tablet manufacturer‚ namely Apple. Adoption rate was not at its best with the initial introduction of the Surface Pro
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1 Class XII Chemistry Ch 5: Surface Chemistry Chapter Notes Top Concepts / Key learnings: 1. 2. 3. 4. 5. 6. Adsorption: The accumulation of molecular species at the surface rather than in the bulk of a solid or liquid is termed as adsorption. Adsorbate: The substance which is being adsorbed on the surface of another substance is called adsorbate. Adsorbent: The substance present in bulk‚ on the surface of which adsorption is taking place is called adsorbent. Desorption: The process of removing an
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DIFFERENT STYLES OF SCULPTING What is sculpting? Sculpting is fashioning three-dimensional figures‚ busts or abstract pieces from stone‚ clay‚ wood‚ bronze or other material. For thousands of years man has been putting form into stone‚ wood‚ clay and metal. Many of these have survived over time and provided millions with great pleasure and historical reference. Two of the most popular sculptures that are recognized throughout the world are the statues of David. The subject that will be discussed
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SuperHydrophobic Surface Fabrication The research plan must include the following: I. Statement of the Problem/s: This study aims to Specifically answer these questions: 1. What chemicals or substances would be effective to use? 2. Where else can we apply the monolayer‚ other than plastic‚ using the same procedures? 3. How long will this effect last? 4. What liquids can it repel besides water? II. Hypothesis: a. There is a significant difference in the results using varied
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BP’s Management Planning Presentation By Michelle Rollins MGT/230 1/20/14 Rick Benito Overview The planning function of management The influence of legal issues‚ ethics and corporate social responsibilities of British Petroleum (BP) The factors that influence‚ Strategic‚ Tactical‚ operational and contingency planning Planning For Rebuilding and Growth Exploration Deepwater Gas value and chains Technology Relationships Strategic goals Increase stock values Rebuild public relationships
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Surface Area Formulas In general‚ the surface area is the sum of all the areas of all the shapes that cover the surface of the object. Cube | Rectangular Prism | Prism | Sphere | Cylinder | Units Note: "ab" means "a" multiplied by "b". "a2" means "a squared"‚ which is the same as "a" times "a". Be careful!! Units count. Use the same units for all measurements. Examples |Surface Area of a Cube = 6 a 2
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