Explore a comprehensive physics tutorial covering fluid mechanics concepts including density, pressure, buoyancy, Archimedes' principle, Pascal's principle, and Bernoulli's equation. Dive into detailed explanations, formulas, examples, and practice problems on topics ranging from fluid density and specific gravity to hydraulic lifts, manometers, and fluid dynamics. Learn to solve complex problems involving buoyant forces, apparent weight, fluid flow rates, and lift forces on airplane wings. Master key principles through numerous worked examples and gain a solid foundation in fluid mechanics and its real-world applications.