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I am Lyosha [343]
3 years ago
8

Describe the difference between a conductor and an insulator in terms of thermal energy transfer and provide an example of each.

Physics
1 answer:
Nikitich [7]3 years ago
4 0

The difference between conductors and insulators is because of electronic structure of atoms and molecules.

 

Anywhere we have free electrons, we have a hard conductor where free electrons help in conduction.

 

In electrolytes, charged Ions do conduction.

 

Dielectrics (or insulators) don't have free electrons current.

 

Free electrons mean, the electrons that are not related with a specific atom, they are allowed to move nearby the crystal lattice.

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Its initial position was 471 m.

Explanation:

We have,

Final position of the object is 327 m

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It is required to find its initial position. The difference of final and initial position is equal to the displacement of the object. So,

d=\text{final position}-\text{initial position}\\\\-144=327-\text{initial position}\\\\\text{initial position}=327+144\\\\\text{initial position}=471\ m

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A car engine changes chemical potential energy into the blank energy of the moving car​
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<h3><u>Answer;</u></h3>

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<h3><u>Explanation;</u></h3>
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When the temperature of 2.35 m^3 of a liquid is increased by 48.5 degrees Celsius, it expands by 0.0920 m^3. What is its coeffic
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Coefficient of volume expansion is 8.1 ×10⁻⁴ C⁻¹.

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We need to find α , by plugin the given values in the equation and by rearranging the equation as,

\alpha=\frac{\Delta \mathrm{V}}{\mathrm{V}_{0} \Delta \mathrm{T}}=\frac{0.0920}{2.35 \times 48.5}=0.00081

  = 8.1 ×10⁻⁴ C⁻¹.

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