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Lilit [14]
3 years ago
15

Which category of materials does concrete belong to and why?

Physics
2 answers:
lukranit [14]3 years ago
6 0
4.  its a composite because its a mixture of cement, 
WARRIOR [948]3 years ago
3 0

Answer:

Correct Answer is option 4 (It’s a composite because it’s a mixture of cement, sand, and other granular pieces.)

Explanation:

Concrete :

Concrete is a mixture which is made up of sand, cement, granular pieces and water. sand can be spread anywhere in liquid form and when it dries it becomes hard as stone. Concrete is used for making buildings.

Composite:

Composite is a material which is formed by mixing various element

Since Concrete is formed on mixing various element like cement, granular pieces, water and sand. Therefore concrete is a material which belong to composite category.

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Answer:

An object decreases in size due to the collision of materials. An object increases in size due to the addition of materials. Gas particles are formed from solar nebula materials.

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4 years ago
Gravity on earth is 9.8 m/s squared, and gravity on the moon is 1.6 m/s squared. So if the mass of an object on earth is 40 kilo
garik1379 [7]

The mass of an object on Earth is the same as its mass on the Moon. The weight is different.

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If the mass of an object on Earth is 40 kg, its mass on the Moon is 40 kg and its weight on the Moon is 64 N. 

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3 years ago
A current of 2.0A flows through a light bulb. What is the amount of charge flowing through the light bulb in 40 seconds?
lidiya [134]

Answer:

Quantity of charge = 80 Coulombs

Explanation:

Given the following data;

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To find the amount of charge flowing through the light bulb;

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Quantity of charge = current * time

Substituting into the formula, we have;

Quantity of charge = 2 * 40

Quantity of charge = 80 Coulombs

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