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4 years ago

If you were told an atom was an ion, you would know the atom must have a

Physics

2 answers:

Effectus [21]4 years ago

7 0

The atom must have gained 1 or more electrons or must have lost 1 or more electrons.

sweet-ann [11.9K]4 years ago

3 0

Explanation:

In an atom number of electrons and protons are equal. it is an electrically neutral specie.

In an ion, the number of electrons and protons are not equal. There are two types of an ion :

Cation: When the number of protons are greater than number of electrons. These ions have a positive charge.
Anion : When the number of electrons are greater than number of protons. These ions have a negative charge.

Hence, if an atom is considered as an ion, then it will have an unequal number of protons and electrons.

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What two forces are most responsible for the formation of the cascade mountains

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<span>The two foremost forces that were involved in the creation of the Cascade mountains are those of the tidal and tectonic forces. Tidal forces helped in eroding anything that was there previously, and the tectonic forces caused the eruption of these mountains to take place.</span>

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4 years ago

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KonstantinChe [14]

Answer:

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3 years ago

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According to the Can Manufacturers Institute, the energy used to make an aluminum can from recycled aluminum is 5% of the energy

ololo11 [35]

Answer:

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Explanation:

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3 years ago

A box weighing 43.2 N is pulled horizontally until it slides uniformly lat a constant

GREYUIT [131]

Your diagram should include four forces:

• the box's weight, pointing down (magnitude <em>w</em> = 43.2 N)

• the normal force, pointing up (mag. <em>n</em>)

• the applied force, pointing the direction in which the box is sliding (mag. <em>p</em> = 6.30 N, with <em>p</em> for "pull")

• the frictional force, pointing oppoiste the applied force (mag. <em>f</em> )

The box is moving at a constant speed, so it is inequilibrium and the net forces in both the vertical and horizontal directions sum to 0. By Newton's second law, we have

<em>n</em> + (-<em>w</em>) = 0

and

<em>p</em> + (-<em>f</em> ) = 0

So then the forces have magnitudes

<em>w</em> = 43.2 N

<em>n</em> = <em>w</em> = 43.2 N

<em>p</em> = 6.30 N

<em>f</em> = <em>p</em> = 6.30 N

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3 years ago

Question 8: Cosmology (8 points)

STatiana [176]

Big bang happened about 13.7 billion years ago in our universe.

<h3>Describe the beginning of the universe according to the big bang theory?</h3>

According to the big bang theory, about 13.7 billion years ago, an explosive expansion began, expanding our universe outwards faster than the speed of light.

<h3>Describe the future of the universe according to the flat model?</h3>

According to the flat model, the universe is infinite and will continue to expand forever because the universe is expanding.

<h3>What is cosmic background radiation? </h3>

Cosmic background radiation is a weak radio-frequency radiation that is traveling through outer space in every direction. It is the residual radiation of the big bang, when the universe was very hot.

<h3>How do observations of the cosmic background radiation provide evidence to support the big bang theory? </h3>

The Big Bang theory predicts that the early universe was a very hot place and that as it expands, the gas within it cools. Thus the universe has all over radiation which is called the “cosmic microwave background".

Learn more about big bang here: brainly.com/question/10865002

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2 years ago