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darkmagic
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I have a question, if a hung object is submerged in a pail of water, does the weight of the pail with water increase. The object is still hung and no water spills.
No. Ask yourself: Before the object is in the water, what's the tension in the string? Does that tension change when the object is submerged?darkmagic said:Well, I think it does not add. Since the object is hung? Am I correct?
Exactly.darkmagic said:before, the tension is the weight of the object. when submerged, the tension change since there is a bouyant force that acts on the object. Am I correct?
Yes.darkmagic said:So it adds weight.
No. The buoyant force isn't cancelled. But a force equal to the buoyant force will be added to the 'weight' of the pail plus water.The weight added will be the weight of the object when in air, since buoyant force will be cancelled?
If the pail starts out full to the brim, then the weight of the spilled water will exactly equal the buoyant force on the submerged object. (See Archimedes' principle.)darkmagic said:So buoyant force will be added? I got it. How about if water spills? The spilled water will be the buoyant force that will be out of the pail. However, the object exerts a force equal but opposite of the buoyant force, so it adds weight? correct?
Buoyancy is the upward force exerted by a fluid on an object that is partially or completely submerged in it. This force is equal to the weight of the fluid that the object displaces.
The shape of an object affects its buoyancy because it determines the amount of fluid that it displaces. Objects with larger volumes will displace more fluid and therefore experience a greater buoyant force.
The density of an object is directly related to its buoyancy. Objects with a higher density than the fluid they are submerged in will sink, while objects with a lower density will float. The buoyant force acts in the opposite direction of the object's weight.
The depth of an object in a fluid does not affect its buoyancy. As long as the object is submerged, the buoyant force will remain the same. However, the pressure exerted by the fluid on the object will increase with depth, which may affect other factors such as the object's shape or density.
Yes, an object can have negative buoyancy if its density is greater than that of the fluid it is submerged in. In this case, the buoyant force will be less than the object's weight, causing it to sink.