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How could it be possible that an object with a density greater than that of water could float in water?
Wiki User
∙ 9y ago
There are two ways to make an object with a density greater than water float on it:
1) reduce its density, for example by hollowing it out or adding further structures with a density [much] less than that of water so that it can displace a volume of water equal to its own weight and still have some of its structure above the surface of the water; or
2) Use the surface tension of water so that the object floats - dropping a steel sewing needle on its side very gently onto water will prevent it breaking the surface tension of the water and it will float, until such time as the surface tension is broken, eg by adding a few drops of washing up liquid or agitating the surface, when the needle will sink. (The needle needs to be clean.)
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoWhether or not the object floats depends, not on its density but on the mass (or volume) of water that it displaces. This will depend on its shape.
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What has a mass of 27 g and a volume of 10cm3?
An object with an average density of 2.7 g per cm3. Since only the average density is determined, it could be a hollow object made from a denser material, or an object made from a mixture of several substances such that the average mass is 2.7 g cm-3.
'is it possible to find the volume of an irregular object without using water'?
By definition, an irregular object is one that does not have an easy mathematical representation, it is extremely difficult (if not impossible) to calculate its volume without placing it into a solution of some sort. Attempts to calculate volume otherwise would be subject to severe rounding error, and would thus make it unsuitable for scientific use. For the very special case where the object is uniform and/or its density, ρ=m/V, is known, then its volume could be determined from its mass, V=m/ρ.
What is the domain of 4 2 3 5 0 8 -3 0?
It could be:integersintegers greater than -27non-negative integers and -3rational numbersrational numbers greater than -3.2complex numbersThere are infinitely many possible answers.
What is the least possible decimal greater than zero but less than one?
The least possible decimal that is greater than zero but less than one is point zero infinite times THEN one. One could try to write it as point zero one with a repitan over the zero, but i don't think that that is an acceptable format to use when writing decimals. Hope this helps!
Why is a relative compaction test greater than 100 percent?
You can have a relative compaction value of greater than 100%. The maximum density test gives you a density that is the maximum value under that particular compactive effort. The modified proctor will give you a higher maximum density than the standard proctor test which has a lower energy input. The modified proctor attempts to model the energy input by larger compaction equipment. However, if you had a large piece of compaction equipment and/or compacted the soil in thin lifts repeatedly you could exceed the maximum density. Typically, if you do not have an unusual circumstance (compacting very thin lifts a large amount of times) the higher than maximum density value is the result of a change in soil type. Do a new max if you are unsure on the soil that you tested in the field.
How could you determine if an object has greater density than water?
It will sink when you put it in water. If it floats it has less density then water.
What will an object do when it is placed in a liquid of greater density?
It could dissolve.Or it could float or sink. Which of the two it does depends on the mass of the liquid that it displaces which, in turn, depends on the shape of the object.
What will happen to a solid object made from matter with a greater density than water is dropped into water.?
It depends on the shape of the object. Otherwise you could not make metal ships.
How is it possible that a can with a calculated density greater than 1.00grams could have floated in water?
Buoyancy is related to the amount of water displaced by an object, rather than it's density. You see this with ships all the time. The object may be much more dense than water, but if it can displace enough water to counteract the force of gravitation, it will remain afloat.
What could you do to an object to change its density?
Adding heat to the object if the object is a solid.
How could you define the density?
Density = mass of an object divided by the volume of that object. Its unit is mass per unit volume.
How can the composition of an object be determined using density?
If you had an object whose composition was entirely unknown, you could not analyse its composition by density alone. There are an endless number of possible combinations of materials that would have any given density. However, in some circumstances density does allow you to determine composition. If for example, you have an alloy of copper and zinc, but you do not know the relative proportion of the two metals and you would like to find out, you could determine that proportion by measuring the density, since copper and zinc each have a different density, and the problem can be solved as a simple algebraic equation.
Does a heavier object or a lighter object experience a greater gravitational force?
I'm not exactly sure what you mean when you say "heavier" and "lighter". Does that mean the object's "weight" ? Could that be the same as the gravitational force on it ?
Calculate the weight of a solid object?
If the object is made of only a pure element or a pure compound whose density you could look up, you could multiply the density of the substance by the volume of the object, then, assuming you are on or near Earth's surface, multiply the product by 9.8 m/s^2.
Does the mass of a coin affects it's density?
It can; density is the mass of an object divided by its volume. Increasing its mass could increase its density--it depends on what happens to the volume as well.
Beside density a thing float or sink in a liquid depend on weigh or not?
Yes, whether or not an object sinks depends on the mass of the object, the density of the liquid, and the volume of the object. The object has to displace its mass (or you could think of it as weight because W = m*g) in the liquid.
What has a mass of 250 grams and a volume of 50 centimeters cubed?
It could be a solid object made with a mixture of materials whose average density is 5 grams per cm3 or it could be a hollow object made with materials whose density is higher.
