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Mamont248 [21]
3 years ago
14

Which part of the motor is responsible for reversing the flow of current?

Physics
1 answer:
snow_tiger [21]3 years ago
8 0

Answer:

Commutator.

Explanation:

It is electrical switch and consist of cylinder. Split rings are two halves of a ring that act as a Commutator. When current in the coil is Zero and is about to change the direction.

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A British newspaper was interested in whether groups of people who differed in social standing were treated differently when the
fiasKO [112]

Answer:

That there should be no distinction between a person of certain social standing than another form a different one. They all should be treated the same.

Explanation:

Unfortunately, this experiment showed the reality of today´s society: that eventhough racism, social distiction, bullying, is seen as wrong, it is still happening.

Social standing is very important in the bussiness world and service facilities. People still treat better some community or type of person because they think they are "better" for having something or its believes, it´s in their culture.

In this example, the priest had better service because society thinks that people church-related are better because of their values, type of life, etc.

However, the type of life some people have won´t have to matter when a service is provided. All arethe same.

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3 years ago
What minimum number of cycles are necessary for the engine to lift a rock of mass 570 kg through a height of 150 m?
gogolik [260]
5 is the minimum number of cycles necessary for the engine to lift a rock of mass 570 kg
6 0
3 years ago
When a tiny stream forms during rainfall carrying away some soil and plants and leaving a scar.
ozzi

Answer:  Streams and rivers are integral parts of the landscape that carry water and sediment from high elevations to downstream lakes, estuaries, and oceans. The land area draining to a stream or river is defined as its watershed. When rain falls in a watershed, it either runs off the land surface, infiltrates into the soil, or evaporates.

Explanation:

4 0
2 years ago
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Develop an algebraic relationship that describes a satellite moving in a circular orbit around a planet if the speed of the sate
lana [24]

Answer:

Explanation:

For this problem we must use Newton's second law where force is gravitational attraction

      F = m a

Since movement is circular, acceleration is centripetal.

      a = v2 / r

Let's replace

      G m M / r² = m v² / r

      G M r = v²

The distance r is from the center of the planet

      r = R + h

      v = √ GM / (R + h)

If the friction force is not negligible

      F - fr = m a

Where the friction force must have some functional relationship, for example

           Fr = b v + c v² +…

Suppose we are high enough for the linear term to derive the force of friction

          G m M / r - (m b v + m c v2) = m v2

          G M / r - b v = v²

We see that the solution of the problem gives lower speeds and that change over time.

To compensate for this friction force, the motors should be intermittently suspended to recover speed.

5 0
3 years ago
In this chemical reaction, one or more atoms replaces a part of a
tino4ka555 [31]

Explanation:

If there are more reactants than products, it is a synthesis reaction. If oxygen is a part of the reactant, it is a combustion reaction. If one ion replaces another, it is a single replacement reaction. If there are two compounds in a reactant where cations switch, it is a double replacement reaction.

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