P - What books are recommended for the U.S. Physics Olympiad?

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Recommended preparation for the U.S. Physics Olympiad includes studying past question papers to understand the exam format and question types. A strong theoretical foundation in key physics areas such as electromagnetism, mechanics, waves, oscillations, optics, general relativity, fluids, and solids is essential. Participants should focus on developing both problem-solving skills and conceptual understanding. Engaging with comprehensive physics textbooks and resources can enhance readiness for the competition. A solid grasp of fundamental physics principles is crucial for success in the Olympiad.
sr6622
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Hey you knowledgeable physics guys...what books are good for the Physics Plympiads? (the U.S. one)
 
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bumpage wumpage
 
When I went for my Phy.Olympiad , I prepared from last year question papers just to get an idea of the type of questions.You should have a good theoretical reasoning base along with solving ability . A good physics background is necessary , like you should have a good hold over basic fundamentals of electromagnetism , mechanics , waves , oscillations , optics , G.Relativity , Fluids and Solids.

BJ
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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