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masha68 [24]
3 years ago
12

A CD-ROM is a compact disk that

Physics
1 answer:
lisov135 [29]3 years ago
8 0
The answer is C, A CD-ROM is a compact disk that contains stored information that can be read on a computer. which can be used and store for a long time. A CD-ROM store data in digital format. data is written from a laser light on the disk. Minimum capacity this drive is around 700 MB.
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Two charges, q1 and q2, are separated by a certain distance r. if the magnitudes of the charges are halved and their separation
vazorg [7]

The electrical force between these two charges remains the same. In coulomb’s law, it states that the magnitude of two charges (product of two charges) is inversely proportional to the square of the distance. Since both the magnitude and the distance are halved, therefore, the change in both quantities will have no effect in the value of electrical force.

6 0
2 years ago
What is the major source of energy on Earth? Group of answer choices a.photosynthesis b.fossil fuels c.EM waves from the sun d.
olya-2409 [2.1K]

Answer:

Em waves from the sun d

Explanation:

8 0
3 years ago
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Explain Any Ten Forces Briefly.​
icang [17]

Answer:

--->

Explanation:

1. Air Resistance- this is a type of frictional force that acts upon objects as they travel through air. It usually opposes the motion of an object and it is mathematically difficult to predict its value.

2. Gravity- the force of gravity is the force that the earth, and moon use to attract an object towards itself. The moon has far less gravity than earth. All objects on earth experience a force of gravity that pulls them downward, towards the center of the earth.

3. Tension- the tension force is the force that is transmitted through a string, rope, cable or wire when it is pulled from opposite ends. The tension force is directed along the length of the wire and pulls equally on the objects on the opposite ends of the wire

4. Friction- this is the force exerted by a surface when an object moves across it. Friction results from the two surfaces being pressed together closely.

5. Electromagnetic force- although they don't seem similar, electricity and magnetism are related. Flowing electrons produce magnetism, and a moving magnet produces electricity.

6. Upthrust- this is the upward force that a liquid or gas exerts on a body floating in it.

7. Spring force- The spring force is the force exerted by a compressed  spring upon any object that is attached to it. This object is always acted upon by a force that restores the object to its rest or equilibrium position.

8. Applied force- An applied force is a force that is applied to an object by a person or another object.

9. Electrostatic force- The types of forces exerted by all electrically charged bodies on another charged bodies in the universe are ‘electrostatic forces’. They can be either positively or negatively charged.

10. Nuclear force- these are the forces that act between two or more nucleons. They bind protons and neutrons into atomic nuclei. The nuclear force is about 10 millions times stronger than the chemical binding that holds atoms together in molecules.

7 0
3 years ago
Which of the following statements are true?
trasher [3.6K]

Answer:

C-) Compound machines are made from two or more simple machines

Explanation:

Simple machines use the principle of Lever, where a force multiplied by a distance is used. That is why a simple machine does not produce electricity. Simple machines must be composed of at least two parts. For this reason the combination of simple machines results in a compound machine.

3 0
3 years ago
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What happens in a chemical reaction?
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2 years ago
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