Physics 102 Week 2 Notes
Physics 102 Week 2 Notes PHYS 102
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This 1 page Class Notes was uploaded by Chloe Smithson on Friday January 16, 2015. The Class Notes belongs to PHYS 102 at University of Oregon taught by Shahir in Winter2015. Since its upload, it has received 262 views. For similar materials see Fundamentals of Physics in Physics 2 at University of Oregon.
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Date Created: 01/16/15
Physics 102 Essentials of Physics Week 2 Notes Chloe Smithson Pressure Force per unit area pforcearea depends on area over which force is distributed the units are Nm2 lbft2 or Pa Pascals Pressure is NOT just equal to force Pressure in a Liquid 0 Force per unit area that a liquid exerts on an object 0 this is depth dependent not volume dependent which means that the deeper you swim the more pressure you feel this acts equally in all directions which is why bottom of boats are pushed up this is independent of the shape of the container liquid pressure density depth acts perpendicular to the surfaces of the container Buoyancy Q The apparent loss of weight of submerged objects 0 The displacement rule states that a submerged object ialways dispaces a volume of liquid equal to it s volume 0 Buoyant force is the net upward force that fluid exerts on immersed objects and is equal to the weight of water displaced Sink or Float 0 Things sink when the weight of the object is greater than the buoyant force 0 Things neither sink nor float when the buoyant force is equal to weight of object 0 Things float when the weight is less than the buoyant force Archimedes principal 0 This relates buoyancy to the displaced liquid 0 An immersed body completely or partially is buoyed up by a force equal to the weight of the fluid it displaces Flotation Q Denser fluids exert greater buoyant force on a body than less dense fluids 0 This also applies in air
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