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tankabanditka [31]
3 years ago
10

If an atom is neutral, then the number of electrons is equal to the number of

Physics
1 answer:
Aloiza [94]3 years ago
4 0

Answer:

Neutral atom means the number of protons is equal to the number of electrons.

Explanation:

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a quantitative observation because it includes numerical data

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What unit can be used to measure the mass of a grain of salt
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milligrams

Explanation:

The best unit to measure the mass of a grain of salt is the milligram.

This is about; a thousandth of a gram.

  A grain of salt is a very small particle size that can still be visible with the eye.

It has a very low and small mass.

For substances like this, we use the milligram:

             1000milligram  = 1g

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How do you make the chemical equations LiOH+H2(SO4) and H2O+Li2(SO4) balanced?
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3 years ago
You jump off a truck and accelerate toward the surface of the Earth. Does the Earth accelerate toward you?
Triss [41]

When we jump from the truck and accelerate towards the earth surface, the earth also accelerates towards us but it's acceleration is very negligible.

To find the answer, we need to know about the acceleration of earth due to the gravitational attraction.

<h3>What's the gravitational force between the earth and a person?</h3>
  • Gravitational attraction force is GMm/r² between the earth and a person.
  • M= mass of the earth

m= mass of the person

r= separation between them.

<h3>What's the acceleration of the earth towards the person when he jumps from a truck?</h3>
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  • Acceleration= Force / M
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  • As this acceleration is very small, so we can't notice it.

Thus, we can conclude that the earth also accelerates towards us.

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