Why do boats float? All boats float‚ but floating is harder and confusing than it sounds and its best explained through a scientific concept called buoyancy. Buoyancy is the force that causes floating. An object will either float or sink depending on its density in the water. If it’s denser than water‚ it mostly sinks; the less dense object usually will float. It doesn’t matter the size of the object is. Plastic that is big as a football field will float because it is less dense that the water. A
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(the molecules get less close thus making the ice have less density than water. If this did not occur ice could sink and destroy living organism. (sea animals) Thermal properties Water resist temperature change‚ due to high specific heat which in turn helps our body (70% water) keeps the water from overheating or freezing. Absorbency The ability to take in a material Adhesion The tendency of water to stick to other substances Buoyancy The ability of a fluid to exert an upward force on an object
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rotating flow can go left right or down. Can’t go up because air tends to be denser then the updraft air. So if that air goes down it gains downward momentum. Bc that air gains downward momentum which will evap cool it will continue to gain neg buoyancy. Once at the surface you have your RFD. Large precip surrounding the updraft which you are talking about HP’S. Dry air in midlevels you could be talking about any type of supercell. - Compressional warming will reduce processes. Another reason
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adjusting the gas pressure in the swim bladder‚ the fish is able to neutralize its buoyancy in order to move up or down or side to side in the water. When gas is released from the swim bladder‚ the fish becomes denser. By using the swim bladder‚ the fish can adjust its density making it equal to the water around it. By adjusting the gas pressure using the gas gland or oval window‚ the fish can obtain neutral buoyancy and ascend and descend to a large range of depths. Swim Bladder appearance
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Beverage Density Lab Sugar Content Analysis Introduction Have you ever been to the ocean? Does it seem that you can float or swim much easier in the ocean than in a swimming pool? Seawater is more dense than freshwater due to the presence of dissolved salt in the ocean. As a result‚ our buoyancy – ability to float – is greater in salt water than in plain water. What factors determine the density of a solution? Can the density of a solution be used to determine how much of a particular
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The fundamental modes of heat transfer are: Conduction or diffusion The transfer of energy between objects that are in physical contact Convection The transfer of energy between an object and its environment‚ due to fluid motion Radiation The transfer of energy to or from a body by means of the emission or absorption of electromagnetic radiation Mass transfer The transfer of energy from one location to another as a side effect of physically moving an object containing that energy Conduction
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is buoyant force‚ more commonly known as buoyancy. A solid object’s density determines whether or not the buoyant force of a liquid can lift it. The density of an object depends upon its weight and its size. Given two solid objects that are different sizes‚ but weigh the same‚ the smaller‚ more compact object is the denser of the two. Fluids also have density. When an object is placed in the fluid‚ it pushes aside some of the liquid and‚ if its density is greater than that of the fluid it displaces
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Stabilization 10. Electronics & Control 11. Body Frame 12. Manufactured Parts & Processes 12.1. Aluminium Body 12.2. Delrins (Back & Front) 12.3. Delrins (Motor & Legs) 12.4. Poly (Methyl Methacrylate) 12.5. Legs 13. Calculations 13.1. Gravity & Buoyancy 13.2. Pressure & Force 13.3. Heat Transfer 13.4. Acceleration 14. Tests & Evaluation 14.1. Bilge Pump Water Resistance Test 14.2. Bilge Pump Power & Propeller Test 14.3. Frame Impermeability Test 15. Budget 16. Conclusion References Appendix
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CH3041 Chemical Engineering Unit Operations II Lau Wai Man‚ Raymond Jiang Rongrong Office: N1.2-B2-32 Office: N1.2-B1-08 Phone: 6316 8830 Phone: 6514 1055 Email: wmlau@ntu.edu.sg Email: rrjiang@ntu.edu.sg Course Outline • Particulate Technology – Particle size analysis – Packed bed – Gas-solid fluidized bed – Gas-liquid-solid fluidized bed • Filtration • Crystallization • Drying Covered by Prof. Jiang Rongrong Grading • Continuous Assessment – 30% Quizzes • Exam – 70% Final
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The Biological Importance of Lipids Lipids are organic compounds found in all types of plant and animal cells. They always contain carbon‚ hydrogen and oxygen‚ however the relative amount of oxygen is less than the amount of carbohydrates in lipids. Lipids are polymers and the long chains of repeating units are joined together in a condensation reaction where water is also produced. The most common types of lipids are triglycerides‚ phospholipids and waxes. Triglycerides are formed by three fatty
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