Which of the following objects is NOT a part of our solar system? A. the North Star B. the dwarf planet Pluto C. the asteroid belt D. Jupiter’s moons

Answers

Answer 1
Answer: Of the items on the list, only choice A. (The North Star) is not a part of our solar system. The items in our solar system are those objects that orbit our Sun and are enclosed inside the Oort Cloud. The North Star (named Polaris) is a star located quite some distance away from the Earth.
Hope that helped! =)
Answer 2
Answer: The answer is A because the North Star is a star and stars are suns not in our solar system. Hope this helped!

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How many atoms are in 26.8 g Fe

What are ways you can collect and analyze data?

Answers

Data analysis has two prominent methods: qualitative research and quantitative research. Each method has their own techniques. Interviews and observations are forms of qualitative research, while experiments and surveys are quantitative research.

Name one job of a cell found in a plant leaf

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The cell wall of the plant cell protects the cells.
the cell wall of the plant cell protects the cell

I need 2-6 please help me

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Im sure the answers are in the reading...

How many atoms in 54.0 g of aluminum

Answers

There are 12.052 ×10²³ atoms in 54 g of aluminium according to the concept  of Avogadro's number.

What is Avogadro's number?

Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present  in the sample.

It  has a SI unit of reciprocal mole whose numeric value is expressed in reciprocal mole which is a dimensionless number and is called as Avogadro's constant.It relates the volume of a substance with it's average volume occupied by one of it's particles .

According to the definitions, Avogadro's number depend on determined value of mass of one atom of those elements.It bridges the gap between macroscopic and microscopic world by relating  amount of substance with number of particles.

Number of atoms can be calculated using Avogadro's number as  follows: mass/molar mass×Avogadro's number

Substituting the values in the formula,54/26.98×6.022×10²³=12.052×10²³ atoms .

Hence, there are 12.052×10²³ atoms in 54 g of aluminium.

Learn more about Avogadro's number ,here:

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The development of nuclear power has provided electricity for less money, but at a cost. What may be considered a "cost" of nuclear power? A. Large amounts of energy are produced very cheaply.

B.
It takes a lot of energy to run a nuclear power plant.

C.
Nuclear power plants provide new jobs for a community.

D.
The radioactive waste is unsafe and hard to store safely.

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D. A disadvantage of nuclear power is that waste products are unsafe and hard to store. They must be stored for many hundreds of years before they becomes safe and easier to dispose of, and we currently don't have a good method of storing them in the meantime.


d. radioactive waste is extremely unsafe and difficult to store safely.

Which of the following is not a characteristic of a theme A. it runs throughout a piece
B. it. is stated clearly
C. it has universal quality
D. it is present in music, literature, visual art, and other forms of artistic expression ​

Answers

b it is stated clearly