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3 years ago

which actions most likely cause the domains within a material to lose their alignment and become more randomized

Physics

2 answers:

Crazy boy [7]3 years ago

5 0

Answer: heating, placing in a strong magnetic field, Placing in an electric field.

Explanation: Placing the material in an electric field.

Heating the material. Raising the temperature of the material.

Place the material in a magnetic field that is basically of opposite polarity.

Physically hitting of the material.

zimovet [89]3 years ago

4 0

answer:

heating the material

placing the material in a magnetic field of opposite polarity

hitting the material

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2 years ago

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Explanation:

Given that:

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3 years ago

A 20 kg crate initially at rest on a horizontal floor requires a 80 N horizontal force to set it in motion. Find the coefficient

e-lub [12.9K]

Answer:

The coefficient of static friction between the crate and the floor is 0.41

Explanation:

Friction Force

When an object is moving and encounters friction in the air or rough surfaces, it loses acceleration and velocity because the friction force opposes motion.

The friction force when an object is moving on a horizontal surface is calculated by:

$Fr=\mu N$ [1]

Where $\mu$ is the coefficient of static or kinetics friction and N is the normal force.

If no forces other then the weight and the normal are acting upon the y-direction, then the weight and the normal are equal in magnitude:

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$\displaystyle \mu=\frac{80}{196}$

$\mu=0.41$

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2 years ago

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Answer:

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