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UkoKoshka [18]
2 years ago
14

What is an item in which magnetic domains can be aligned and a magnetic field induced for a short period of time

Physics
2 answers:
dusya [7]2 years ago
6 0

Answer:temporary magnets

(soft magnets) retain their magnetic properties for a short time

example: paper clips and nails become magnetized by being near or rubbing against a magnet

Leto [7]2 years ago
3 0
I think an object such as an iron pipe could work
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A block of mass m is pushed a horizontal distance D from position A to position B, along a horizontal plane with friction coeffi
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Answer:

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Explanation:

Hi there!

The work done by a force is calculated as follows:

W = F · d · cos θ

Where:

W = work.

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d = displacement.

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Then, in this case, the work done by friction when pushing the block from A to B will be:

W AB = -Ffr · D

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When the block is pushed from B to A, the work done by friction will be:

W BA = Ffr · (-D)

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The total work done by friction will be:

W AB + W BA = - μ · m · g · D  - μ · m · g · D  = -2 μ · m · g · D

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