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Q: Would an aluminum cube weigh more in air or in water?
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Why doesn't a metal boat's sink?

Archimedes Principle states that the buoyant force on a submerged object is equal to the weight of the fluid that is displaced by the object.If a cubic centimeter of aluminum was suspended in a fluid such as water with a very thin and negligible thread, the metal cube would have the fluid exerting pressure on the cube. Try to imagine that if the cube were to disappear, and the fluid would magically replace the cube, then the surrounding water would support this cube that is now containing water, so that the cube of water would be motionless. That is, the forces would be balanced. The cube of water would push out on the surrounding water and the surrounding water would push back on the cube. The fluid would be static, or stationary. Now replace this same cube of water with the original cube of aluminum. The surrounding water would not 'know' that the cube has been replaced with another substance. It would still push inward and upward and downward with the same force that it pushed on the cube of water. The sideways forces would be balanced and oppose each other equally, but the upward and downward forces would not be the same. The pressure at the bottom of the cube is greater than the pressure at the top of the cube, because pressure increases with increased depth. The difference between the upward and downward forces acting on the bottom and the top of the cube, respectively,is called buoyancy.Using the aluminum as our example, it has a specific gravity of 2.8. Water has a specific gravity of 1.0. This means that a cubic centimeter of water would have a mass of 1.0 grams, while aluminum of the same size would have a mass of 2.8 grams. Since the aluminum cube displaces 1 cubic centimeter of water, it has a buoyancy of 1.0 grams. Since buoyancy is a force and not a mass, it must be converted to the proper units, which when multiplied by the acceleration of gravity (980 cm/s2) gives the units of dynes. That is, (1.0 grams) (980 cm/s2) = 980 grams cm /s2 or dynesSo our aluminum cube immersed in water would not 'weigh' (2.8 x 980) dynes or 2744 dynes. It would weigh less due to the fact it has a buoyant force of (1 x 980) dynes from the water. So it would weigh (2744-980) dynes or 1764 dynes while immersed in the water.Archimedes Principalwater weighs 62.4 lbs per cubic foot. if yoour boat weighs more than 62 lbs and isless than 1 cubic foot it will sink. if more it will float. the more the in size for the same weight the higher it will float


If an aluminum cube had a mass of 20g and the length of each side was 2 centimeters between what to liquids would it float?

This aluminium cube doesn't float on water.


How much does a 1cm cube of water weigh?

I gram


Why does a penny sink in water but a boat doesn't?

A boat floats because it gets to displace its weight in water before it has a chance to submerge. If you designed a penny to do that, it would float too. The penny never gets to displace its weight in water; it sinks, and displaces only its volume. Here's what I mean by "displacing volume, and displacing weight". Take a two-inch cube of aluminum, and a two-inch cube of lead. The lead cube will weigh a lot more than the aluminum one, but when you put them in water, they will sink, and "push aside" exactly the same amount of water; a two-inch cube of water, in fact. Now take two identical model boats, and put one cube into each one. Assume the boats are large enough so the boats don't sink! Using a large cylindar, you will see that the boat with aluminum will make the water level go up a certain amount. The amount of water "pushed up" will weigh the same as the (boat plus the aluminum). Do the same with the other, and more water will be "pushed up". For the second boat, the amount of water "pushed up", or displaced, is equal to the (boat plus the lead).


An aluminum cube measue 8cm on each edge Aluminume weighs 2.7grams per cubic cm how much does the cube weigh?

An aluminum cube measures 8cm on each edge Aluminum weighs 2.7grams per cubic cm how much does the cube weigh? For a cube the length = width = height = 8 cm Volume = length * width * height Volume = ___ * ___ * ___ = ____ cubic cm Aluminum weighs 2.7grams per cubic cm That means each cubic cm of Aluminum weighs 2.7 grams. 5 cubic cm weighs 5* 2.7 = 13.5 cubic cm Multiply your Volume * 2.7 grams per cubic cm


What occurs when a 35-gram aluminum cube at 100C is placed in 90 grams of water at 25C in an insulated cup?

Heat if transferred from the aluminum to the water, and the temperature of the water increase


How much does aluminum metal weigh?

Molecular Weight: 26.98The density of industrial qualities of aluminum lies around 2.7A cube 10cm each edge weighs 2700 grams


What has more mass an aluminum cube or plastic cube?

It depends on the size of the cube.


How long would the ice cube stay in the hot water?

That would depend on the temperature of the cube and the water along with the volume of water and the mass of the ice cube and its area.


How many milliliters of water would be displaced by 120 cube?

It would depend on the size of the cube!


How much does ice cube weigh?

There are too many variables to give a standard weight, but it will weigh the same as the weight of the water you started with (if we ignore vapor loss).


What would happen if you mixed water olive oil and an ice cube?

if you were to add water an ice cube an olive oil the water would be on the bottom and the oil would be on top and the ice cube wuld float inside of the olive oil.