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UNO [17]
3 years ago
10

Consider the following hypothetical observations, some of which are real and some of which are fictional. For each observation,

your job is to answer this question: If the observation were real, would it provide evidence for or against the idea that the universe is expanding? Sort each observation into the appropriate bin as follows:
A) Place an observation in the "Supports the expanding universe" bin if it would provide evidence that the universe is expanding.
B) Place an observation in the "Contradicts the expanding universe" bin if it would provide evidence that would force us to reconsider the idea of an expanding universe.
C) Place an observation in the "Neither supports nor contradicts" bin if it does not allow us to distinguish between a universe that is expanding and a universe that is not expanding.
Geography
1 answer:
Zolol [24]3 years ago
4 0

Answer:

A) Irregular galaxies outside the Local Group are moving towards us.

B) All galaxies in the Coma Cluster of galaxies have redshifted spectra

C) Galaxy speeds are faster in Summer than in Winter

D) The Andromeda Galaxy, a member of our Local Group, is moving towards us

E) The measured rate of expansion is the same in all directions

F) Galaxies 200 million light-years away move away from us twice as fast as galaxies 100 million light-years away

G) Spiral Galaxies move away from us 10% faster than elliptical galaxies at the same distances

Explanation:

The universe is expanding and has been continuously expanding since its formation billions of years ago. Because the universe does not have a center, everything is moving away from everything else through space.

Some of the statements in this question prove this while others contradict the observation of our universe expanding.

However, the Andromeda galaxy moving towards us neither supports nor contradicts this observation. The Andromeda galaxy is in our local group, a group bound together by gravitational force.

Supports the expanding universe

B) All galaxies in the Coma Cluster of galaxies have reshifted spectra

E) The measured rate of expansion is the same in all directions

F) Galaxies 200 million light-years away move away from us twice as fast as galaxies 100 million light-years away

Contradicts the expanding universe

A) Irregular galaxies outside the Local Group are moving towards us.

C) Galaxy speeds are faster in Summer than in Winter

G) Spiral Galaxies move away from us 10% faster than elliptical galaxies at the same distances

Neither supports nor contradicts

D) The Andromeda Galaxy, a member of our Local Group, is moving towards us

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Answer: The elements of a folktale in the excerpt include:

The story is being narrated in third person.

The story is set in the past (at a time when people kept slaves).

The scene is simply described. That is scenes are not described in explicit detail.

If John is the hero of this story, then another element of folklore involved would be - The hero is usually courageous. We can assume this because there were dire consequences for slaves eavesdropping or generally annoying their masters such as beatings, starvation, even torture. For John to take the risk shows bravery.

Explanation:

"Folk" is an old english word for "people". And tale means a fictitious story or true story narrated with lots of imaginative descriptions. Folktale are basically imaginative stories told by people to entertain, convey a moral lesson, pass down traditions etcetera. Most children's stories are folktales.

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• The hero and heroine are usually young.

• The heroine is usually fair, kind, charitable, and caring.

• The hero is usually honorable, courageous, unselfish, and caring.

• Place is described easily and briefly that fits the typical geography of the culture.

• Time is usually in the past (usually long-ago) imbedded within history.

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The story is usually verry simple to follow or read.

Conflicts are usually resolved with great deeds or acts of human kindness related to good and bad/evil.

The story is usually narrated in third person.

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