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expeople1 [14]
2 years ago
5

Irregular and elliptical galaxies contain large amounts of _______ and gas that make it difficult to distinguish individual star

s. One mathematical tool that's used to quantify the rate of universal expansion is _______. The Milky Way, the Andromeda Galaxy, and 52 smaller galaxies are part of a cluster called the _______. Respond to the following based on your reading. How can you infer the existence of dark matter in a massive galaxy or in a cluster? Briefly describe why different types of universes would produce different shifts in the light observed from distant galaxies
Geography
2 answers:
Novosadov [1.4K]2 years ago
6 0

1. dust

2. Hubble's constant

3. Local Group

4. Dark matter is massive enough to produce a gravitational redshift and gravitational microlensing in light from nearby stars or galaxies. The mass of visible matter also can be compared to the total mass of a galaxy or cluster. This invisible portion of the total mass is called dark matter.

5. In an expanding universe, objects are moving away from Earth, so the light they emit would have a redshift as observed from Earth. In a decelerating universe, light would have no redshift. Light would have a blueshift in a collapsing universe because all objects in that type universe would be moving toward each other.

andreyandreev [35.5K]2 years ago
5 0

Answer:

1. dust

2. Hubble's constant

3. Local Group

4. Dark matter is massive enough to produce a gravitational redshift and gravitational microlensing in light from nearby stars or galaxies. The mass of visible matter also can be compared to the total mass of a galaxy or cluster. This invisible portion of the total mass is called dark matter.

5. In an expanding universe, objects are moving away from Earth, so the light they emit would have a redshift as observed from Earth. In a decelerating universe, light would have no redshift. Light would have a blueshift in a collapsing universe because all objects in that type universe would be moving toward each other.

Explanation:

pen foster answer key.

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weqwewe [10]
The correct answer is - Increased confidence in human potential and individual worth encouraged ideas independent of traditional church teachings.
Most of the people were still religious in this period, and in fact the biggest portion of the scientists in this period were close to the church, but it became very obvious that lots of things are very wrong, so people that had enough potential, money and power, that believed that things are way different then the ones depicted in the Bible, started making experiments and new discoveries. This was mostly going on in secret because the church did not approved it and was still too powerful. But some of those science minded, courageous and determined people managed to break the ice and set the basics for the future generations.
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2 years ago
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Hal Silverstein has a savings account, also called a _____, at his local credit union.<br><br><br>​
Zarrin [17]

Answer:

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Explanation:

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2 years ago
Which street travels through the region with the steepest slopes?
Anestetic [448]

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Which important indoor safety measure should be taken during a thunderstorm?
stira [4]
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2 years ago
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Which phrase describes a sill?
hammer [34]

This question is incomplete because the options are not given; here is the complete question:

Which phrase describes a sill?

A. Fills in valleys and rivers

B. Is a hardened magma intrusion

C. Cuts vertically through older rock layers

D. Is built up by numerous eruptions over thousands of years

The correct answer is B. Is a hardened magma intrusion

Explanation:

Sills are horizontal layers in the soil that form as a result of magma. Also, sills are considered sheet intrusion because the hardened magma gets into older rock layers or soil layers and cuts the rocks horizontally. Moreover, the type of intrusion is studied by geologists to understand the formation and age of soil layers and this differs from other intrusions due to its composition and horizontal formation. According to this, the correct answer is B.

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2 years ago
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