PP204_Archimedes - Fluids Archimede's Principle RHJansen...

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© RHJansen Fluids Fluids Archimede’s Principle Archimede’s Principle
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© RHJansen Archimede’s Principle Archimede’s Principle The force buoyancy is equal to the weight of the fluid displaced. The force buoyancy is equal to the weight of the fluid displaced. F buoy = ρ φλυιδ δισπλαχεδ γς φλυιδ δισπλαχεδ F buoy = μ φλυιδ δισπλαχεδ ς φλυιδ δισπλαχεδ γς φλυιδ δισπλαχεδ F buoy = μ φλυιδ δισπλαχεδ γ F buoy = Φ γ φλυιδ δισπλαχεδ
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© RHJansen Example 1 Example 1 A 3 metric ton blimp must displace ___ metric tons of air. A 3 metric ton blimp must displace ___ metric tons of air. 3 Example 2 Example 2 A 100,000 ton ship must displace _________ tons of water. A 100,000 ton ship must displace _________ tons of water. 100,000 100,000 Example 3 Example 3 Ice cubes float sticking out of the water slightly. How does the level of a glass Ice cubes float sticking out of the water slightly. How does the level of a glass change as ice melts? Explain. change as ice melts? Explain. Water expands when it freezes becoming less dense and floating. The part of Water expands when it freezes becoming less dense and floating. The part of the ice above water is the extra expansion volume when freezing. If you melt the ice above water is the extra expansion volume when freezing. If you melt the ice is losses volume and the level in the glass does not change.
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