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3 years ago

9

2. Elements in the same group have similar properties because they have O the same number of protons O the same number of valenc

e electrons O the same number of energy levels with electrons O the same total number of electrons

1 answer:

NARA [144]3 years ago

3 0

The same number of valence electrons

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The distance between two charged objects is doubled. What happens to the electrostatic force between the two?a)It will double.b)

zzz [600]

Answer:

d) It will be cut to a fourth of the original force.

Explanation:

The magnitude of the electrostatic force between the charged objects is

$F=k\frac{q_1 q_2}{r^2}$

where

k is the Coulomb's constant

q1 and q2 are the charges of the two objects

r is the separation between the two objects

In this problem, the initial distance is doubled, so

r' = 2r

Therefore, the new electrostatic force will be

$F=k\frac{q_1 q_2}{(r')^2}=k\frac{q_1 q_2}{(2r)^2}=\frac{1}{4}(k\frac{q_1 q_2}{r^2})=\frac{1}{4}F$

So, the force will be cut to 1/4 of the original value.

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Answer:

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Explanation:

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Answer:

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krek1111 [17]

Answer:

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Explanation:

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