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3 years ago

The desinty of a metal is 8.9g/cm3.what does it mean? what is the importance of this value?

Physics

2 answers:

prohojiy [21]3 years ago

6 0

Answer:

it means that the mass of 1 cm^3 of the metal is 8.9 grams.

The density is used to approximate how heavy and object is going to be. The mass of an object with known density and volume can be calculated using;

Mass = density × volume

Density is used to determine whether an object would float or sink in water of other substances.

Density is also considered in the selection of materials for construction, fabrications and manufacturing of products

Explanation:

Density is the measure of compactness of a substance. It is simply the mass of a unit volume of a substance.

Density = mass/volume

If the desinty of a metal is 8.9g/cm^3, it means that the mass of 1 cm^3 of the metal is 8.9 grams.

That means that the mass of a unit volume (1cm^3) of the metal is 8.9 g.

The density is used to approximate how heavy and object is going to be. The mass of an object with known density and volume can be calculated using;

Mass = density × volume

Density is used to determine whether an object would float or sink in water of other substances.

Density is also considered in the selection of materials for construction, fabrications and manufacturing of products

Komok [63]3 years ago

5 0

Answer:

It means that in every cubic centimeter volume of the metal, there is 8.9 grams mass of the metal.

Explanation:

It means that the degree of compaction of the atoms of the metal is 8.9 g/cm3.

It also means that in every cubic centimeter volume of the metal, there is 8.9 grams mass of the metal.

This information (density) will help us to understand how dense the the metal is, whether it will float or sink when immersed in a certain fluid.

Example, this metal will sink when it is immersed in water, because density of water is 1g/cm3, which is less than the density of the metal.

Also, this metal will float when immersed in a fluid like heavy crude oil, whose density is great than 8.9g/cm3.

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3 years ago

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3 years ago

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Black_prince [1.1K]

Answer:

a = - 3.75 m/s²

negative sign indicates deceleration here.

Explanation:

In order to find the constant deceleration of the car, as it stops, we will use the 3rd equation of motion. The 3rd equation of motion is as follows:

2as = Vf² - Vi²

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3 years ago

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Naily [24]

Answer:

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Explanation:

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3 years ago

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neonofarm [45]

If you provided the aforementioned line 19, that would kinda be great.

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