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GalinKa [24]
2 years ago
10

I am ion with 17 protons, 18 neutrons, and 18

Physics
1 answer:
gtnhenbr [62]2 years ago
7 0

Answer:

chloride, ion, -1, this is an anion

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Which of the following is not a way that astronomers can find how much dark matter there is in cluster of galaxies?
Tpy6a [65]

Answer:

<em>b. Observe the radio waves coming from all dark matter; from the strength of the radio waves from each cluster, estimate the amount of dark matter needed to produce them.</em>

<em></em>

Explanation:

The universe is thought to be made up of 85% dark matters. <em>Dark matter is called dark because it does not appear to interact with the electromagnetic field, which means it doesn't absorb, reflect or emit electromagnetic radiation, and is therefore difficult to detect. This means that option b is wrong since radio wave is an electromagnetic wave</em>. Dark matter is a form of matter that makes up  about a quarter of the total mass–energy density of the universe. Dark matter was theorized due a variety of astrophysical observations and gravitational effects that cannot be explained by accepted theories of gravity unless there were more matter in the universe than can be seen.

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Which two staments explain how a cell's parts help it get nutrients
Goryan [66]

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2 years ago
Earning Goal: To be able to calculate work done by a constant force directed at different angles relative to displacement
lana [24]

Answer:

the work done by the 30N force is 4156.92 J.

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2 years ago
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