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Generally, when the sawdust is filled, it should float when it is put into a plastic bottle.
Because wood is less dense than water. So put it in a plastic bottle, it will float too.
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Hello friends, put a plastic bottle full of cars in the sink, it should float, because it's not so wet, it's not so wet, it's all empty, and the air in it is less dense than water, and it's smaller than water, and it will float on the water.
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Hello, if you put a lonely plastic bottle in the sink, it will definitely float, because the water is buoyant, so it will shake.
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Generally speaking, whether the bottle sinks or not, it depends on the load of the bottle and the displacement of the bottle, if it is a 500ml ordinary mineral water bottle, then when all sink, the displacement is about 500ml, that is, about that, then, the bottle is filled with more than the object, it will sink into the water, and below, it will float on the surface of the water.
This is also the principle of why steel ships can float on the water.
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If the sawdust is dry, it should float to the surface when put in a plastic bottle and put it in the water, and if it is wet, it may sink to the bottom.
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First of all, it depends on the amount of water, if there is enough water, the bottle can float, if there is too little water, the bottle cannot float.
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When you put a plastic bottle in the sink, will it sink or float? I think it's supposed to be floating.
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Put the plastic bottle with sawdust in the sink, and I personally think that it sinks, and there should be a little weight in the bottle.
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Depending on the size of your bottle, if the bottle is big, it must have sunk to the bottom.
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If you put the plastic bottle of sawdust in the sink, it will definitely float and will not sink.
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Jiang Zhuang has a sentence about whether the plastic bottle is placed in the sink or floats? Depending on the dissatisfaction of the mill, if it is full, the weight will be greater than the buoyancy of the water, and it will sink.
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To solve physics problems, you can use the method of assuming first and then eliminating. Let's assume that the plastic bag is suspended in the water in the bathtub (note: in junior high school science, there is no such thing as suspended on the surface of the water, the object is either floating on the surface of the water, suspended in the water, or sinking to the bottom of the water).
Water fish gas. The buoyancy of the water in the plastic bag must be equal to the gravitational force of the water it dissipates. The small fish can swim freely in the water, then the buoyancy of the small fish must be equal to the gravity of the water it distributes, but the density of the air in the plastic bag is much smaller than the density of the water, then the buoyancy of the air must be much greater than the gravity it is subjected to, so from this point of view, the buoyancy of the whole plastic bag must be much greater than the gravity it is subjected to, and the result is to make the plastic bag float upwards as a whole until it floats on the water surface.
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b floats on the water, is it obvious, the density of water is equal to the density of water, the density of fish is about equal to the density of water, the density of air is much less than the density of water, and the overall density is certainly less than the density of water.
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There is water in it, and of course it is impossible to float up and not to sink. Naturally, the air part floats on the surface of the water, and the water is filled in the water. If you think about it, you don't need to do complicated data calculations. You can't be all A, you can't count B, right! It should be suspended above the water.
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Plastic bottles can float on the surface of the water when placed in water, and even more so when placed in salt water, have you ever heard of the Dead Sea? Because the salt in the Dead Sea is relatively large, people can float on the surface.
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Floats on the water. Because the density of foam is less than that of water, the mass of the discharged water is equal to the mass of the foam and floats on the surface of the water.
But now some of them are sinking because of the addition of items to the plastic and the change of composition.
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Different plastics float differently.
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The density of the styrofoam block is relatively small, so it floats when it is put into the water, press the styrofoam block down into the water, and then let go of your hand, you will feel that it has an upward buoyancy on your hand, because the density of the styrofoam block is very small, so it will produce an upward buoyancy force on your hand.
Styrofoam will float on the surface of the water, press the foam into the water and then let go of your handStyrofoam will float because it is less dense than water, so it will float on the water, and it will still float after pressing it into the water and letting go of your hand. (Density Quality Principle).
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1 All of them float at first, because the density is small, and then they will sink.
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Float because the density of hot water is less than that of cold water.
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Generally, it is floating, depending on the specific gravity of plastic and water, if the proportion of plastic is large, it is sinking, and vice versa.
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The plastics in our daily life mostly refer to PP [polypropylene], PE [polyethylene], PVC [polyvinyl chloride], etc., as well as some composite plastics [plus additives] such as plexiglass.
Among them, PE [polyethylene] new products are floating, most of the others are sinking, and the polyethylene that is processed after the first is also sinking.
Polyethylene is relatively safe for the human body and can be used as tableware and food packaging, so some people say that "plastic floating on the surface of the water is non-toxic".
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Toxic sinking, non-toxic floating.
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Put Styrofoam in the water and it will float on the surface of the water.
This is because the density of Styrofoam is less than that of water, and the static buoyancy of water on Styrofoam is greater than the weight of Styrofoam, so Styrofoam in water will float on the surface of the water.
For the same reason, if you press Styrofoam down into the water with your hand and then let go of your hand, you will see Styrofoam quickly float up and float back on the water.
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The density of the styrofoam block is relatively small, so it floats when it is put into the water, press the styrofoam block down into the water, and then let go of your hand, you will feel that it has an upward buoyancy on your hand, because the density of the styrofoam block is very small, so it will produce an upward buoyancy force on your hand.
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Desert plastic floats on the water. Press it into the water with your hand and you will see it float up when you let go. Because it is submerged in water, it experiences an upward buoyancy much greater than its gravitational force, so it floats.
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Styrofoam floats when placed in water because Styrofoam is generally less dense than water. Pressing the styrofoam down into the water and letting go of the hand will feel an upward buoyancy on your hand, because the density of styrofoam is small, it will create an upward buoyancy on your hand.
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This is a simple physical phenomenon, the density of Styrofoam is less than the density of water, so Styrofoam will float on the surface of the water, press Styrofoam into the water with your hands, and your hands will feel the resistance, that is the buoyancy of water.
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The density of the styrofoam block is relatively small, so it is put into the water to test the styrofoam, quickly press down into the water, and then let go of the hand, you will feel that he has an upward buoyancy on your hand.
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Because of Styrofoam, it is less dense than water, so when it is placed in water, it will float on the surface of the water. Use your hand to press him into the water, this is because his buoyancy is greater than gravity, so after letting go of his hand, he still has to float.
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I put styrofoam in the water and float.
Press the styrofoam down into the water with your hand, and then let go of your hand and you will see it bounce upward.
It's because of the presence of buoyancy.
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Plastic foam is less dense than water and will float on the surface of the water when placed in water. Press the foam into the water, let go of your hand and the foam will float to the surface.
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Because the density of styrofoam is relatively small, it floats on water.
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It's floating, because bubble plastic is there.
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Because foam is less dense than water.
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Float. You will see Styrofoam float up because it is less dense than water.
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Put Styrofoam in the water and it will float on the surface. Press the Styrofoam down into the water with your hand and let go of your hand to see the Styrofoam gradually rise to the surface of the water.
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Foam is much less dense than water, so it's definitely floating on top of water.
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