Please provide a clear and complete explanation for each open-ended question. Elaborate your answers throughly. Make the explanation strong, detailed, and accurate. Provide citations if necessary.

Part B. Open ended Questions. 1. A piece of iron placed on a block of wood makes it float lower in the water; If the iron were instead suspended beneath the wood. would it float as low, lower, or higher? Defend your answer. 2. Will a swimmer gain or lose buoyant force as she swims deeper in the water? Or will her buoyant force remain the same at greater depths? 3. When you replace helium in a balloon with less dense hydrogen] does the buoyant force on the balloon change if the balloon remains the same size? Explain. 4. Why do airplanes normally take off facing the wind? 5. In the hydraulic arrangement shownr the larger piston has an area that is fifty times that of the smaller piston. The strong man hopes to exert enough force on the large piston to raise the 1D kg that rest on the small piston. Do you think he will be successful? Defend your