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castortr0y [4]
3 years ago
14

Which statement best describes the magnetic properties of a material?

Physics
1 answer:
Zigmanuir [339]3 years ago
5 0

Answer:

Magnetic materials have many spinning, unpaired electrons.

Explanation:

Any moving electric charge creates a magnetic field, also electrons since they spin and move around the nucleus. However, if two electrons are paired on the same orbital they always spin in opposite directions that causes their magnetic field to cancel out. Even if there are unpaired electrons in some atoms and these atoms act as small magnets, the magnetic field of the neighbouring atoms can have different directions and they also cancel out each other. Only presence of a large number of unpaired electrons in a material can create a significant magnetic field. This is the root part of the definition of magnetic properties of material.

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What force is needed to move a 5 kg mass with an acceleration of 5 m/s²?
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Answer:

b)25N

Explanation:

F=ma

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F=25N

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2 years ago
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Please help me! Uniform acceleration problem sheet:
Brrunno [24]

From the calculation, the value of the acceleration is 5.8 m/s^2.

<h3>What is uniform acceleration?</h3>

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In a recent experiment, anti-bacterial hand sanitizer was compared to hand soap. Students washed their hands using the sanitizer
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<span>B) Both soap brands out perform hand sanitizer in killing bacteria.</span>

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A graduated cylinder.measures 15.3 mL. Convert this measurement to DaL
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Answer:

0.000153DaL  

Explanation:

We have been given:

         15.3mL to convert to DaL

DaL is a unit of volume which indicates a decaliter.

 This implies that;

             1 Da L  = 1 x 10²L

So:

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       So 15.3mL will give 15.3 x 10⁻³L

So;

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Therefore, this is 0.000153DaL  

           

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3 years ago
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