Questions Assuming 1. What could be done to increase the buoyant force of a mass
ID: 1575538 • Letter: Q
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Questions Assuming 1. What could be done to increase the buoyant force of a mass suspended in water? you could change anything but the specific gravity of water) What would be the buoyant force in vegetable oil on a submerged square block that is 4.0 em wide? 2. What affects buoyant force more, the surface area of the object being submerged or the mass of the object? Explain. 3. On a given submerged object, how would the buoyant force change as the object sinks? Explain 4. 5. explain the fundamentals of Archimedes Principle.Explanation / Answer
1, The buoyant force depends on the volume displaced, density of the fluid and acceleration due to gravity. To increase the buoyant force, we can either change the dimensions of the object in order to displace more volume or we can increase the density of the fluid by mixing some highly densed substance.
2, F = rho*g*V where rho is density of vegetable oil (915 kg/m3), g = 9.8 m/s2 , V = volume displaced = 4^3 = 64 cm3 = 6.4e-5
F = 915*9.8*6.4e-5 = 0.5739 N
3, As we can see, buoyancy force is affected by surface area rather than mass of the object.
4, As the object sinks, the buoyant force on the object decrases and is dominated by the weight of the object.
5, Accprding to archimedes principle, The magnitude of the buoyant force on an object is equal to the weight of the fluid it displaces.
B = rho*g*V
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