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
amid [387]
3 years ago
10

If a distant galaxy has a substantial redshift (as viewed from our galaxy), then anyone living in that galaxy would see a substa

ntial redshift in a spectrum of the Milky Way Galaxy.Choose the correct explanation why the statement makes sense (or is clearly true) or does not make sense (or is clearly false).
a) This statement makes sense. The redshift means that we see the galaxy moving away from us, so observers in that galaxy must also see us moving away from them—which means they see us redshifted as well.b) This statement doesn't make sense. The redshift means that we see the galaxy moving to us, so observers in that galaxy must see us moving away from them—which means they don't see us redshifted.c) This statement makes sense. The redshift means that we see the galaxy moving to us, so observers in that galaxy must also see us moving to them—which means they see us redshifted as well.d) This statement doesn't make sense. The redshift means that we see the galaxy moving away from us, so observers in that galaxy must see us moving to them—which means they don't see us redshifted.
Physics
1 answer:
mario62 [17]3 years ago
3 0

Answer:

Option A

Explanation:

The statement makes sense since it's already explained that the galaxy is moving away from us and unlike option C which depicts that the galaxy is moving to us.

This statement makes sense. The redshift means that we see the galaxy moving away from us, so observers in that galaxy must also see us moving away from them—which means they see us redshifted as well

You might be interested in
A ladybug sits 10.8 cm from the center of a beatles music album spinning at 33.33 rpm. What is the maximum velocity (in m/s) of
snow_lady [41]

Answer:

The maximum velocity is 0.377 m/s

Explanation:

Please, the solution is in the Word file attached

Download docx
7 0
3 years ago
Read 2 more answers
Under what conditions can an object have forces acting on it, but its motion does not change ?
Lady_Fox [76]

Answer: An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion.

Explanation: I hoped that helped!!

7 0
2 years ago
30. The length of mercury thread when it is at 0°C, 100°C and at an unknown temperature 0 is 25mm, 225mm and 175mm respectively.
yulyashka [42]

Answer:

75°C

Explanation:

175−25/225−25=x−0/100−0

150/200=x/100

x=150×100/200

= 75°C

3 0
3 years ago
Baseball player swings and hits a pop fly straight up in the air to the catcher. the height of the baseball in meters t seconds
andre [41]
The height at time t is given by
h(t) = -4.91t² + 34.3t + 1

When the ball reaches maximum height, its derivative, h'(t) = 0.
That is,
-2(4.91)t+34.3 = 0
-9.82t + 34.3 = 0
t = 3.4929 s

Note that h''(t) = -9.82 (negative) which confirms that h will be maximum.

The maximum height is
hmax = -4.91(3.4929)² + 34.3(3.4929) + 1
          = 60.903 m

Answer:
The ball attains maximum height in 3.5 s (nearest tenth).
The ball attains a maximum height of 60.9 m (nearest tenth)

4 0
3 years ago
Calculate the diffraction limit of the human eye, assuming a wide-open pupil so that your eye acts like a lens with diameter 0.8
guapka [62]
Hi, thank you for posting your question here at Brainly.

This problem could be solved using this equation:

Diffraction limit = 1.22*wavelength/diameter

diameter = 0.8 cm = 0.008 m
wavelength = 500E-9 m

Diffraction limit = 1.22(500E-9)/0.008
Diffraction limit = 0.00007625
6 0
3 years ago
Other questions:
  • WILL MARK BRAINLIEST!!!!!!!
    12·2 answers
  • A ball is dropped from the top of a building.
    7·2 answers
  • Which of the following statement describes an actual orbit
    8·2 answers
  • How can you calculate distance when given power, time, and mass?
    12·1 answer
  • Explain why the moon is always half illuminated and half dark no matter where it is in the lunar cycle.
    6·1 answer
  • 2. According to research, what is the most reliable form of identifying potentially effective reinforcers?
    8·1 answer
  • A proton accelerates from rest in a uniform electric field of 610 N/C. At some later time, its speed is 1.4 106 m/s.(a) Find the
    5·1 answer
  • A car travels for 10s at a steady speed of 20m/s along a straight road. A traffic light changes to red, and the car slows down w
    12·1 answer
  • We use towels to dry our body after taking a shower,why?<br><br>​
    12·1 answer
  • In a transformer, energy is carried from the primary coil to the secondary coil by:________
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!