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Alborosie
3 years ago
11

1.

Physics
2 answers:
Harlamova29_29 [7]3 years ago
7 0
1.renewable energy
2.renewable energy
3.Turning off the lights when you are not in a room
4.conservation of energy
5.Driving an SUV
6.stored energy
7.Always from one side to another
8.use our energy resources wisely
9.conservation of energy
10.by either moving liquids or moving air currrents
11.potential energy
12.radiation
13.insulators
14.radiation
15.Evaporation
16.Thermal energy moves to an object with less heat.
17.Burning your finger on a hot match
18.potential energy
19.Energy is never being created or destroyed.
20.touching each other
AnnZ [28]3 years ago
6 0

Explanation:

1. Renewable Energy. These sources are natural sources of energy and has zero emission in comparison to the fossil fuels.

2. Renewable Energy. As Sun light is natural and will last forever.

3. Taking long, hot showers. As this activity is resulting in waste of energy it can not show energy conservation.

4. Conservation of Energy. According to the law the total of all the energy in an isolated system remains constant i.e. conserved.

5. Turning off the lights when you are not in a room. As this activity is resulting in saving energy.

6. Stored energy. Potential energy is the energy stored or held by any object because of its position.

7. Always to a place of lower thermal energy. The flow of thermal energy causes heat and it always moves from high temperature to low temperature.

8. Use our energy resources wisely. Conservation of energy means using the resources wisely. You might think that we should recycle all of our energy. But most of the time that is not possible.

9. Conservation of Energy. According to the law the total of all the energy in an isolated system will always remain constant i.e. conserved. It means it cannot be destroyed or created. It can only be converted from one type of energy to another.

10. By either moving liquids or moving air currents. Convection is a process of energy transfer where hot particles of liquid or gas move up loses energy, dive down and are replaced by hotter particles.

11. Potential energy. Potential energy is the energy stored. In the batteries chemical energy is stored which get converted to electrical energy for the flashlight to work.

12. Conduction. As the heat energy will be transferred through the water molecules which are in contact with each other.

13. Insulators. These are the objects which do not conduct heat well. Example: Wood.

14. Radiation. The energy of the Sun or stars is transferred through electromagnetic radiations.

15. Convection. In convection the heat is transferred through the motion of particles. Here the hot water will move up and cold water will move down.

16. Thermal energy moves to an object with less heat.

17. Burning your finger on a hot match. Because for conduction to happen the two objects must touch each other.

18. Potential energy.

19. Energy is never being created or destroyed.

20. Touching each other.

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mina [271]

There are four forms of matter: Solid, Liquid, gas and Plasma and matter undergoes various state changes termed as melting, freezing, boiling, evaporation, condensation, sublimation and deposition.

<u>Explanation:</u>

Solids

A matter that have a definite shape because of its closely packed molecular structure; are known as Solids. It can be identified as they have a definite shape and cannot flow or float without external forces are applied.

Liquids

These have a an internal molecular structure with comparatively more spaces with one another. Liquids have a property to flow and change shape according to the container it is taken.

Gases

The internal molecular structure of gases has the widest range of space among one another and thus they have a floating property because of least density.

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<u>Phase transformation among the four forms of matter</u>

<u>Melting</u>

A matter changing from a solid phase to liquid phase is known as melting. Ex: Ice into water

<u>Freezing</u>

A matter changing from liquid to solid is known as freezing.

<u>Boiling</u>

When the liquid is heated to its boiling point, this gets transformed into the state of gas where liquid's pressure equals to the external pressure.

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Once the liquid reached the temperature range above the boiling point ad starts converting into vapours or gaseous state.

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When the gases changes from the gaseous phase to liquid phase, this is called condensation.

<u>Sublimation</u>

The change of solid into gas is called as sublimation.

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3 years ago
Two forces act on a 6.00-kg object. One of the forces is 10.0 N. If the object accelerates at 2.00 m/s2
liubo4ka [24]

Given :

Two forces act on a 6.00-kg object. One of the forces is 10.0 N.

Acceleration of object 2 m/s².

To Find :

The greatest possible magnitude of the other force.\

Solution :

Let, other force is f.

So, net force, F = 10 + f.

Now, acceleration is given by :

a=\dfrac{F}{mass}\\\\a= \dfrac{10+f}{6}\\\\\dfrac{10+f}{6}=2\\\\f = 12 - 10\\\\f = 2 \ N

Therefore, the greatest possible magnitude of the other force is 2 N.

Hence, this is the required solution.

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Explanation:

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