1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arlecino [84]
3 years ago
14

When scientists observed the light from stars and galaxies, they noticed that their color shifted toward the end of the visible

color spectrum.
A. violet
B. Green
C. Red
D. Blue
Physics
2 answers:
kakasveta [241]3 years ago
8 0
<h2>Right answer: Red  </h2>

When we talk about the visible electromagnetic spectrum, we know it starts in <u>violet-blue</u> and ends in <u>red</u>.

Now, in this context the astronomer Edwin Powell Hubble observed several celestial bodies, and when obtaining <u>the spectra of distant galaxies</u> he observed that the spectral lines were displaced towards the red one (red shift), whereas <u>the nearby stars</u> showed a spectrum displaced to the blue one.

From there, Hubble deduced that the farther the galaxy is, the more redshifted it is in its spectrum, and noted that all galaxies are "moving away from each other with a speed that increases with distance".  

In other words: In the past the distance between two galaxies was smaller than at present, being this <u>the proof that the universe is expanding </u>(like a balloon expands when it is filled with air).

It should be noted that the redshift is not produced by the relative movement of the galaxies with each other.

<h2>This effect is due to the own expansion of the space among the galaxies. </h2>
lakkis [162]3 years ago
7 0
Color shifted towards the end is C red
You might be interested in
An object is allowed to fall freely near the surface of a planet. The object has an acceleration due to gravity of 24 m/s2. How
Alborosie

Answer:

12 m

Explanation:

The object is in uniformly accelerated motion, so the distance covered can be found using the following suvat equation:

s=ut+\frac{1}{2}at^2

where

s is the distance

u is the initial velocity

t is the time

a is the acceleration

For this problem,

g=24 m/s^2

and

u = 0, since we are considering the first second of motion

So, substituting t = 1 s, we find

s=0+\frac{1}{2}(24)(1)^2=12 m

6 0
3 years ago
How does the temperature affect the phase of water
Sever21 [200]

Answer:

Temperature affects phase change by slowing down the movement in between the atoms, thus causing a change in kinetic energy, which in turn causes the atoms to undergo forms of combining or a type of disepersion.

Explanation:

Kinetic energy while being the reason phase changes are constant, Kinetic Energy can be caused by other means. Pressure and temperature can affect many other states kinetic energy, which in turn can affect each state of matter. Making a group of atoms or compounds compacts will force the atoms to move closer together thus with a lower net kinetic energy energy. Reducing temperature also works along the same lines. Colder temperatures can slow down atomic movements which in turn will naturally make each atom move close to each other.

With all of the information provided, it is only feasible that pressure and temperature are directly corresponding with the matter and atomic phase change

8 0
2 years ago
A moving body has energy due to its motion. This energy is called
fgiga [73]

Answer:

kinetic energy is the answer

Explanation:

kinetic energy is movement

4 0
3 years ago
Why is photosynthesis essential for plant homeostasis?
aalyn [17]
It should be answer choice b
6 0
3 years ago
Read 2 more answers
What interests you the most about Social Psychology? What do you think is one of the most aggravating issues that our society fa
puteri [66]
That the field studys the social context in relationships, society, family, school, etc. The way we form relationships, how society affects the relationships we decide to form, how much society influences our decisions, jobs, education( more than we can imagine.)
I believe the most aggravating issue is the police bruality. The fact that the men who are suppose to be heroes, save lives through enforcing the laws, and give protection to the citizens, are instead acting as criminals themselves killing and creating a sense of danger is inexcusable and a solution needs to be made .
6 0
4 years ago
Other questions:
  • Which of the following is NOT true about sweat? Sweat helps cool the body. Sweat glands are located all over the body. Sweat hel
    6·2 answers
  • A uniform cubical crate is 0.740 m on each side and weighs 600 N. It rests on the floor with one edge against a very small, fixe
    9·1 answer
  • Which one of the following acts is an example of body language?
    15·2 answers
  • HELP 100 PTS WILL BE GIVEN ASAPPP
    13·2 answers
  • A student is sitting at rest in a chair. How does the force that the student exerts
    8·1 answer
  • Which of the following statements about a metal wire in the steady state are true? Select all that apply.
    12·1 answer
  • Characteristics sa Ancient art
    8·1 answer
  • How does charging by conduction occur?
    5·1 answer
  • Which of the following describes qualitative data?
    6·1 answer
  • Helppppppppppppppp.......
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!