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juin [17]
3 years ago
12

PHYSICS GRADE 7 FORCES AND ACCELERATION

Physics
1 answer:
aleksandrvk [35]3 years ago
3 0

Force is simply a push or a pull exerted on an object in order to change the motion of the object. ... Force can change the acceleration of an object. This acceleration can be a change in speed or direction of the object.

Scientists express force using a unit called newton (N).In mechanics, acceleration is the rate of change of the

velocity of an object with respect to time. Accelerations are vector quantities (in that they have magnitude and direction). The orientation of an object's acceleration is given by the orientation of the net force acting on that object.

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4 years ago
What is true about semiconductors?
Iteru [2.4K]

In semiconductors, you can change how easily electrons move through them. That is option 2.

<h3>What are semiconductors?</h3><h3 />

Semiconductors is defined as those substances that possess the characteristics of both metal and non metal.

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The semiconductors are able to conduct electricity through the presence of electrons and holes in them.

The movement of these electrons can be controlled through the addition of impurities to the semiconductor material.

Therefore, in semiconductors, you can change how easily electrons move through them.

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brainly.com/question/1918629

3 0
3 years ago
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andrey2020 [161]

Answer:

E. All of the answers are correct

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7 0
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3. How can the U.S. economy grow if we import more goods and services?
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Answer:

A trade deficit therefore occurs when a country spends more on imports than it receives in exports. A budget deficit, in the context of the government, instead occurs when there is more federal spending than revenue taken in from taxes, duties, fines, and other fees.

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