Cao Chong said that from a physical point of view, what (buoyancy) is that when an object floats on the surface of a liquid, buoyancy is equal to the gravity of the object

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• 1. According to Archimedes' principle, the buoyancy is equal to the gravity of the liquid displaced by the object It means buoyancy {the body is affected by liquid} = gravity {the water drained out}?
• 2. About the physical buoyancy, how to judge that the buoyancy is greater than the gravity, buoyancy is the same as gravity
• 3. How to determine the scientific buoyancy by using Archimedes theorem, f-float = G-F, or f-float = g? What are the conditions for the application of these formulas
• 4. Buoyancy f floating = g object and f floating = g object-f pull In what state is f floating = g object, and in what state is f floating = g object-f pull? I'm not sure about these two According to the formula of buoyancy, m row = m immersion, right?
• 5. How to convert mg / kg and μ g / mg Please give an example,
• 6. How to convert mg into G
• 7. Mg and G conversion
• 8. Conversion of G and Mg Please give advice from experts
• 9. How to convert mg / dL to mg / L? How much mg / L is 1mg / dl? What is 1dl
• 10. What is the concept of concentration unit mg / dl What is the concept of DL in mg / dl?
• 11. When floating, buoyancy is equal to gravity, g = mg, and M refers to the mass of the drained water or the self generated weight of the object
• 12. What problems should be paid attention to when calculating buoyancy with Archimedes' principle: f-floating = g-row = ρ liquid gv-row
• 13. Buoyancy (n) formula method: F floating = ρ liquid GV row A detailed textual explanation of each letter in the formula
• 14. Buoyancy calculation formula: F floating = G-T = ρ liquid GV discharge = f upper and lower pressure difference Who can help me explain what is the pressure difference? How to calculate it? Trouble, trouble,
• 15. The buoyancy formula of physics is
• 16. Calculation formula of physical buoyancy
• 17. Why is the pressure difference f in physical buoyancy equal to f lower surface - f upper surface
• 18. The formula of gravity g = mg, M =?
• 19. The formula of gravity calculation g = mg. G = g / m, read as (), its physical meaning is () the weight of a junior high school student is close to () The equilibrium state of an object means that the object is in the state of uniform linear motion or static state. In this state, the object is subjected to () force () =Don't ignore the supplementary questions And I seem to have copied the wrong question = = not g = g / m, because it should be g = 9.8n/kg
• 20. For the formula g = mg, the correct understanding is A. An object with a mass of 1kg weighs 9.8N B. The weight of a thing is 9.8 times its mass C. The weight g is proportional to g D. The weight g is proportional to M