Accretion is a process recognized as part of the development of .

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Answer 1

Answer:

Answer:

Most astronomical objects, such as galaxies, stars, and planets

Explanation:

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Define and explain what an atom is

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Hi,

Atom is the second smallest form of any matter behind elementary particles. They are not visible to human eye. It consists of protons and neutrons in the atom core and electrons outside its core. All protons, neutrons and electrons are a part of atomic nuclei.

The more neutrons atom haves the bigger the mass of an atom is.

Number of electrons determines which element does atom represent. The more electrons atom haves the heavier element atom represents.

Different elements have different properties.

Hope this helped you understand what atom is better.

Hope this helps.
r3t40

Ten interesting facts about radium and polonium

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1. They were both discovered by Marie and Pierre Curie.
2. They can both poison you.
3. Radium is named after the Latin word for "Ray"
4. Polonium is named after Poland, the country in which Marie Curie was born.
5. Marie and Pierre Curie obtained radium and polonium from pitchblende, a material containing uranium.
6. Polonium was discovered in 1898.
7. Radium was discovered in 1898 as well.
8. Radium and polonium are both elements on the periodic table.
9. Polonium is also called "radium F".
10. Both radium and polonium must be handled very carefully with good equipment, or their toxic fumes could spread and possibly be fatal.

Hope this helped! :)

Is neon element a metal nonmetal or metalloid

Answers

Neon is considered a "nonmetal inert gas".
Neon has the formula "Ne". It has atomic number of 10, which means it has 10 electrons configured as follows: 1s2, 2s2, 2p6. Based on this, neon is monoatomic and stable in standard form.
Neon is a colorless gas that exhibits an orange-red glow when placed in an electric field.

What are sedimentary rocks made of ?

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Sedimentary rocks are made when sand, mud and pebbles get laid down in layers.

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Which type of electromagnetic radiation has a lower frequency than infared radiation

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Radio waves have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation.

A race car travels on a circular track at an average rate of 125 mi/h. The radius of the track is 0.320 miles. What is the centripetal acceleration of the car?

Answers

Answer;

= 48,828.125 mi/hr²

Explanation and solution;

Centripetal acceleration is the rate of change of angular velocity. Centripetal acceleration occurs towards the center of the circular path along the radius of the circular path.

Centripetal acceleration is given by; V²/r ;

V = 125 mi/h and r = 0.320 miles

Thus; centripetal acceleration = 125²/0.320

=15625/0.320

= 48,828.125 mi/hr²

The centripetal acceleration is obtained from the quotient of the square of velocity and the radius. Hence, a= $( v^(2) )/(r)$ . Substituting the give, v=125 mi/h and r=0.320 mi, the answer is equal to 48,828.125 mi/ $hr^(2)$ .

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