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Svetlanka [38]
3 years ago
5

Five metals that are more useful for electroplating

Physics
1 answer:
Radda [10]3 years ago
6 0
5 meteals that are more useful for electroplating carbon,seth,
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What is the magnitude of the electric force between a proton and an electron when they are at a distance of 4.09 angstrom from e
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F=1.38*10^{-9}N

Explanation:

According to Coulomb's law, the magnitude of the electric force between two point charges is directly proportional to the product of the magnitude of both charges and inversely proportional to the square of the distance that separates them:

F=\frac{kq_1q_2}{d^2}

Here k is the Coulomb constant. In this case, we have q_1=-e, q_2=e and d=4.09*10^-10m. Replacing the values:

F=\frac{8.99*10^{9}\frac{N\cdot m^2}{C^2}(-1.6*10^{-19}C)(1.6*10^{-19}C)}{(4.09*10^{-10})^2}\\F=-1.38*10^{-9}N

The negative sign indicates that it is an attractive force. So, the magnitude of the electric force is:

F=1.38*10^{-9}N

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Decribe what must happen inside of an aluminum can in order for it to be attracted to a positively-charged and to a negatively-c
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