Whether the fluid is displaced by a vacuum (in a light, rigid container) or compressed air makes no difference, the bouyant force is the same.
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Does compressed air float better? Compressed air will have a greater downwards weight, so a bouyant bottle of compressed air has less nett bouyancy than an evacuated one: the upwards bouyant forces
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Since compressed air (air at higher pressures) has a higher density, the buoyancy force on the balloon will be higher than on the same balloon floating in atmospheric pressure air.
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There is a consensus among some participants that a container with higher pressure contains more molecules and is therefore heavier, which may influence its buoyancy.
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A container being filled with compressed air at depth will become more buoyant and may begin to rise. If it rises, the air within will gradually expand and be progressively expelled as bubbles
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So, if an object is more dense than water, gravity wins and the object sinks, but if the object is less dense than water, buoyancy wins and the object floats. Air does a pretty good imitation
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Since weight is the measure of an object''s gravitational pull, the compressed air does not weigh more. The difference is in the density of the air.
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Almost. It''s more of an issue with buoyancy than weight, though both are dealing with gravity. There are special tanks that can be filled with water or air depending on what you want the
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Does compressed air float more? Compressed air will have a greater downwards weight, so a bouyant bottle of compressed air has less nett bouyancy than an evacuated one: the upwards bouyant forces
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But, most people think of buoyancy as the NET ability of something to float, that is, the buoyancy minus the weight. Since there''s more air in compressed air of a given volume, it weighs more, so the net
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A container of compressed air is less buoyant in water than the same container filled with normal air at atmospheric pressure. What determines buoyancy is the weight of an object vs. the weight of water
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