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frez [133]
3 years ago
13

What did early experiments and Coulomb’s Law describe? Select all that apply.

Physics
2 answers:
Luda [366]3 years ago
4 0
<span>Like charges repel and opposite charges attract.
The further away two charged objects are the weaker the electrical force between them.
The closer two charged objects are the stronger the electrical force between them.
Hope this helps :)</span>
Varvara68 [4.7K]3 years ago
4 0

Answer:

Option (2), (4), (6)

Explanation:

According to the properties of charges, two like charges repel each other and two unlike charges attract each other.

If two positive or two negative charges kept at a distance, then they repel each other.

If one positive and one negative charges kept at a distance, they always attract each other.

Now according to the Coulomb's law, the force between the two charges, is directly proportional to the product of two charges and inversely proportional to the square of distance between them.

So, farther the two charges, weaker is the force.

And closer the two charges, stronger is the force.

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The ideal mechanical advantage (IMA) can be determined by the following equation:

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 When you substitute in the equation of the ideal mechanical advantage (IMA), you obtain:

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3 years ago
a scale model of the solar system where 50 cm represents 1.0x10 to the fifth km is actual distance what would be the dimension o
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The distance between Mars and the Sun in the scale model would be 1140 m

Explanation:

In this scale model, we have:

x_1 = 50 cm represents an actual distance of

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The actual distance between Mars and the Sun is 228 million km, therefore

d_2=228\cdot 10^6 km

On the scale model, this would corresponds to a distance of x_2.

Therefore, we can write the following proportion:

\frac{x_1}{d_1}=\frac{x_2}{d_2}

And solving for x_2, we find:

x_2=\frac{x_1 d_2}{d_1}=\frac{(50)(228\cdot 10^6)}{1\cdot 10^5}=1.14\cdot 10^5 cm = 1140 m

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The energy stored per unit volume of the inductor is called the energy density of the magnetic field. Why?
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