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weqwewe [10]
3 years ago
5

Fiberglass, an insulator, can be found in the wals and roofs of some houses and buildings. Why would an insulator be needed insi

de of buildings in the winter? It makes the building look pretty B) It keeps the heat inside of the building. C)It keeps the heat outside of the building. D) It keeps the cool air inside of the building. A) A it makes the building look pretty
Physics
2 answers:
GREYUIT [131]3 years ago
5 0

It keeps the heat inside of the building

Fudgin [204]3 years ago
4 0

Answer:

B) It keeps the heat inside of the building.

Explanation:

An insulator during winter is needed to stop the heat flow from going outside.

A Fiberglass insulation is made of plastic and tiny pieces of glass. Glass is a non conductive heat material that will stop the scape of heat from a building during winter. In winter if one place is warmer than other, for example the inside of a building and the outside respectively,  heat will tend to flow from the warmest place to the coolest place in order to valance the difference in temperature and reach a thermal equilibrium, to prevent this we use insulators.

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Kuiper Belt objects are composed of which substances? Select all that apply.
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IM sure there is C, D, and E in kuiper belts, but not really sure of silicon and iron

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You are directed to set up an experiment in which you drop, from shoulder height, objects with similar surface areas but differe
tangare [24]

Answer: c. they will hit the ground at the same time

Explanation:

The volume of both objects is almost the same, so the force of friction will be the same in each one, so we can discard it.

Now, when yo drop an object, the acceleration of the object is always g = 9.8m/s^2 downwards, independent of the mass of the object.

So if you drop two objects with the same volume but different mass, because the acceleration is the same for both of them, they will hit the ground at the same time, this means that the density of the object has no impact in how much time the object needs to reach the floor.

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3 0
3 years ago
Which microbes can be Eukaryotic? A. bacteria B. virus C. protists D. fungi
MissTica
Hey there,

Question : Which microbes can be Eukaryotic?

Answer : A, Bacteria

Hope this helps :D

<em>~Top♥</em>


3 0
3 years ago
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Explain in details the concept of economic geography​
vova2212 [387]

Answer:

In the words of Hartshorn and Alexander: “Economic Geography is the study of the spatial variation on the earth’s surface of activities related to producing, exchanging and consuming goods and services. Whenever possible the goal is to develop generalizations and theories to account for these spatial variations.”

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3 0
3 years ago
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ankoles [38]
<span>So we want to know why is there a difference between the force of gravity on the Moon and the force of gravity of the Earth. So the gravitational force between two objects depends on the masses of both objects. That can be seen from Newtons universal law of gravity. F=G*m1*m2*(1/r^2). So lets say we are holding an object of mass m=1kg on a height r=1m on the Moon and we are holding the same object on the Earth also on the same height of r=1m. The Gravitational force on the Earth will be Fg=G*M*m*(r^2) where M is the mass of the Earth. The force between the moon and that object will be Fg=G*n*m*(r^2), where n is the mass of the moon. Since mass of the Moon is much smaller than mass of the Earth, The gravitational force between the Moon and that body will be almost 6 times smaller than the gravitational force between the Earth and that body. So the correct answer is B. </span>
4 0
3 years ago
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