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elena55 [62]
2 years ago
11

The screwdriver used by an electrician has a plastic or rubber covers on them why

Physics
1 answer:
Nikitich [7]2 years ago
4 0

Answer:

Explanation:

Plastic or rubber are regarded as an insulator, and an insulator does not allow the flow of electric current through them, so the handles of screwdrivers as well as pliers that electricians use in repairing is been covered with plastic or rubber so that electric current is prevented to pass through it to the body of electricians to avoid been electrocuted as well as shock.

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According to the concept of length contraction, what happens to the length of an object as it approaches the speed of light and
lord [1]
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The object in this question moves and then stops moving. So it's length first contracts and then expands to its original length when the motion stops.
The speed doesn't have to be anywhere near the speed of light. When the object moves its length contracts no matter how fast or slow it's moving.
8 0
3 years ago
What is a Pulley why is it used​
aleksley [76]

Answer:

A simple pulley is a wheel with a rope that allows you to pull one end and have it lift whatever is on the other end. A modern, common example of this is a crane, often used in construction.

Explanation:

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2 years ago
What is the momentum of a golf ball with a mass of 62 g moving at 73 m/s?
Vikentia [17]

Explanation:

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2 years ago
What is the efficiency (w/qh) of an ideal carnot heat engine operating between a hot region at t= 400 k and a cold one at t= 300
Vinvika [58]
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\eta = 1-  \frac{T_{cold}}{T_{hot}}
where
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4 0
3 years ago
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crimeas [40]

Answer:

a,e,d

Explanation:

i got it right when i was doing study island

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