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3 years ago

Contrast electron movement within conductors and insulators.

Physics

2 answers:

irina1246 [14]3 years ago

8 0

Answer:

Below

Explanation:

● What makes conductors special is that they have some free electrons that can move.

● An insulator has no free electrons wich explains why current isn't transmitted through it.

LenKa [72]3 years ago

7 0

Electron go brrr and contrast go whoosh

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The work-energy theorem states that a force acting on a particle as it moves over a ______ changes the ______ energy of the part

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Answer:

B. distance/potential

Explanation:

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3 years ago

Which of the following experiments could be used to determine the inertial mass of a block? A. Place the block on a rough horizo

valentinak56 [21]

Answer:

D, using a spring scale to exert a force on the block. Measure the acceleration of the block and the applied force

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3 years ago

Kiera, a 330 N girl, steps in water that someone spilt on the floor. The coefficient of kinetic friction between Kiera and the f

shutvik [7]

Answer:

<em>The force of kinetic friction between Kiera and the floor is 9.24 N</em>

Explanation:

<u>Friction Force</u>

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

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

$Fr=\mu N$

Where μ 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:

N = W

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$Fr=\mu W$

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The kinetic friction force is:

Fr = 0.028*330

Fr = 9.24 N

The force of kinetic friction between Kiera and the floor is 9.24 N

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