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Tamiku [17]
3 years ago
12

Write down four reasons why plastic is put around electrical wires? Plz help me

Physics
2 answers:
postnew [5]3 years ago
3 0

Answer:

1)  is to prevent accidental contact with other conductors of electricity

2) to prevent getting shocked

3) Plastic helps dissipate the heat as well as prevent the wire from getting too hot and causing fire.

4) Without plastic, hot and neutral wires cannot be run in the same conductor or same wire

Explanation:

hope this helped and plz mark me as brainliest

Andrews [41]3 years ago
3 0

ANSWER:

Reasons of using plastic around electrical wires are:

•To protect people from electric shock.

•To prevent the accidental contact of metallic partof wire with other conductor of electricity.

•To prevent the wire from getting too hot and causing fire.

•To conduct the electric flow of current properly .

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<u>We are given:</u>

Direction of motion: 25 degrees south of the east axis

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<em>this component is denoted by green color in the image</em>

Once we drop a perpendicular from the end of the direction vector on the x-axis, we get a right angled triangle

The magnitude of the side of the triangle on the x-axis denotes the east component of the ball

Using trigonometry, we find that the east component of the ball is:

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<u />

<u>North Component of the Ball:</u>

<em>this component is denoted by blue color in the image</em>

Using trigonometry, we find that the North component of the ball is:

125* Sin(25 degrees)  (-j)      <em>[j denotes upward movement on the y-axis, since the vector is acting downwards, we have used '-j']</em>

125 * 0.42 (-j)

52.5 (-j) =   -52.5 j

Therefore the direction vector of the ball is 112.5 i - 52.5 j

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3 years ago
A rock falls off a cliff. How fast will it be going after falling for 4.33 seconds?
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Answer:42.43m/s

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