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An object weighs 3 kilogram in air and 2.5 kilogram in water what is its density?
Wiki User
∙ 13y ago
"kg" is not a unit of weight. Fortunately, it cancels out of the calculations required to answer
this question, so we don't need to make a big deal about it just now.
We'll make the simplifying assumption that there is no buoyant force due to the displacement of
air, and that the object's weight in air is its true, full weight.
The question clearly states that 1/6th of the object's weight vanishes in water. That tells us that
the weight of a parcel of water with volume equal to the volume of the object has 1/6th the weight
of the object. By definition then, the density of water is 1/6th the density of the object.
Since water is taken as the standard of density = 1, the object's density is 6 (grams per cc).
Wiki User
∙ 13y ago
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How dense must an object be to float?
By definition, 1 gram of water will occupy one cubic centimeter. If the object to be floated on water weighs less per cubic centimeter it will float, and if it weighs more it will sink. *For an object to float in a liquid, it must have a lower density than the liquid. For example water has a density of one kilogram per litre and ice has a density of 0.9 kg/L, so ice floats; lead has a density of about 8-9 kg/L, so it will float in mercury (density of somwhere between 15 and 20 kg/L; please correct if you have the data).
How can you find the density of a ball in water in a tube?
Density is a measure of the mass versus volume of an object. The density of water is 1. That is, 1 liter of water has a mass of one kilogram (it has a weight of 9.81 newtons). Thus, by measuring the displacement of the object in the water, you can find the volume of the object. Then by determining its mass with a balanced scale, you can plug the results into the formula: M/V = D. This will give you the density in kg per liter.
When you compare the density of water or air with another object how can you tell which has the lower or higher density?
-- If the object floats in water, then its density is less than the density of water. -- If the object sinks in water, then its density is more than the density of water. -- If the object floats in air, then its density is less than the density of air. -- If the object sinks in air, then its density is less than the density of air.
What is the volume of a 10 gram object if it weighs 8 grams under water?
Not enough information. You would also have to know either the volume, or the density, of the object.
An object with a mass of 4.6 kilograms and a volume of 0.0025 cubic meters is submerged in water. What is the buoyant force on the object?
The buoyant force is equal to the amount of water displaced. Multiply the volume of the object by the density of water - then convert that to a force (at about 9.8 newton/kilogram).
Will kilogram float in water why?
The mass of an object alone is not enough to determine whether it will float in water. You need to know the object's mass and its volume; in other words, its density. A kilogram of solid lead will sink in water. A kilogram of styrofoam will float. If an object is less dense than water it will float; if it is denser it will sink.
Would an object of g in volume and cm cubed be able to float in water?
An object will float in water if it has less density than the water. You can calculate the density of the object by dividing its mass by its volume. For comparison, the density of water is: * 1 gram / cubic centimeter * 1 kilogram / liter * 1000 kilograms / cubic meter
How is a liter of water related to a kilogram?
I litre of water weighs I kilogram
How dense must an object be to float?
By definition, 1 gram of water will occupy one cubic centimeter. If the object to be floated on water weighs less per cubic centimeter it will float, and if it weighs more it will sink. *For an object to float in a liquid, it must have a lower density than the liquid. For example water has a density of one kilogram per litre and ice has a density of 0.9 kg/L, so ice floats; lead has a density of about 8-9 kg/L, so it will float in mercury (density of somwhere between 15 and 20 kg/L; please correct if you have the data).
Does an object less than 1.0 density sink?
No, it weighs less than water so it floats.
Does a kilogram of water have the same density of a kilogram of paint?
no it doesnt
How many Kilograms does 1 liter of water weighs?
1 Litre of water ways exactly 1 kilogram because water has a density of exactly 1 g/cm3.
How are mass and volume related to the sinking and floating of an object?
An object will float - on water for example - if its density is less than the density of water. Density = mass / volume.An object will float - on water for example - if its density is less than the density of water. Density = mass / volume.An object will float - on water for example - if its density is less than the density of water. Density = mass / volume.An object will float - on water for example - if its density is less than the density of water. Density = mass / volume.
How can you find the density of a ball in water in a tube?
Density is a measure of the mass versus volume of an object. The density of water is 1. That is, 1 liter of water has a mass of one kilogram (it has a weight of 9.81 newtons). Thus, by measuring the displacement of the object in the water, you can find the volume of the object. Then by determining its mass with a balanced scale, you can plug the results into the formula: M/V = D. This will give you the density in kg per liter.
Is it true that when the weight of an object is less than the density of water that object the object will float?
The weight does not determine if an object will float in water. If an object has a DENSITY that is more than the density of water then it will sink, if it's density is less than the density of water it will float.
When you compare the density of water or air with another object how can you tell which has the lower or higher density?
-- If the object floats in water, then its density is less than the density of water. -- If the object sinks in water, then its density is more than the density of water. -- If the object floats in air, then its density is less than the density of air. -- If the object sinks in air, then its density is less than the density of air.
How much does one kilogram of water weight?
1 kilogram of water weighs one 1 kilogram or 2.20462262 pounds
