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
irina1246 [14]
3 years ago
9

You observe a distant galaxy. You find that a spectral line of hydrogen that is shifted from its normal location in the visible

part of the spectrum into the infrared part of the spectrum. What can you conclude?
Physics
1 answer:
dimulka [17.4K]3 years ago
6 0

Answer:

The galaxy is moving away from us

Explanation:

Galaxy refers to a system of millions or billions of stars accompanied by gas and dust such that they are held together as a result of gravitational attraction.

When we observe a distant galaxy, we find that a spectral line of hydrogen that is shifted from its normal location in the visible part of the spectrum into the infrared part of the spectrum.

It means that the galaxy is moving away from us.

You might be interested in
The light emitted by an argon laser light includes light with a wavelength of 488 nm. what is the frequency of this light? 6.15
Paraphin [41]
Frequency and wavelength are inversely related. That is, when frequency increases, the value of the wavelength decreases and vice versa. The constant of proportionality of  the relation is the speed of light that has a value of 3.0x10^8 m/s. We calculate as follows:

wavelength = speed of light /frequency
488x10^-9 = 3.8x10^8 / frequency
frequency = 6.15x10^14 /s = 6.15x10^14 Hz ------> OPTION 3
3 0
4 years ago
A car is moving at a constant speed of 14 m/s when the driver presses down on the gas pedal and accelerates for 14 s with an acc
Vinil7 [7]

acceleration of car is 1.8 m/s^2

time = 14 s

initial speed = 14 m/s

so the final speed is calculated by

v_f = v_i + at

v_f = 14 + 14 * 1.8

v_f = 39.2 m/s

so the total distance moved in this interval of time is

d = \frac{v_f + v_i}{2}* t

d = \frac{39.2 + 14}{2}* 14

d = 372.4 m

now the average speed is given as

v = \frac{d}{t}

v = \frac{372.4}{14}

v = 26.6 m/s

so the average speed will be 26.6 m/s

7 0
3 years ago
Help me please (* ̄(エ) ̄*)​
Len [333]

Answer:

1) Are always conservative

Explanation:

Elastic forces are always conservative.

Hope it helps you.

please mark as the brainliest answer.

3 0
3 years ago
Read 2 more answers
Describe how evaporation relates to heat regulation in your body
yanalaym [24]
When you sweat due to heat your sweat evaporates off your body taking the heat away
3 0
4 years ago
1. You push a deak across the room. A force was applied. The object moves as a result of a force.​
FinnZ [79.3K]

Answer:

what is the question?

Explanation:

I'm not sure if this was a question because you gave the answer lol

6 0
3 years ago
Other questions:
  • The hammer throw was one of the earliest Olympic events. In this event, a heavy ball attached to a chain is swung several times
    12·1 answer
  • Consider the hydrogen atom as described by the Bohr model. The nucleus of the hydrogen atom is a single proton. The electron rot
    14·1 answer
  • A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.62 g coins stacked over the 20.3 cm mark, th
    7·1 answer
  • A sound wave has a frequency of 425Hz. What is the period of this wave? a) 0.00235 b) 0.807 c) 425 d) 850
    13·1 answer
  • Pls help A ball rolls horizontally off a 100-meter-tall cliff at 40 meters per second. How far does the ball travel horizontally
    10·1 answer
  • In order to increase thermal energy, the temperature must ___________.
    7·2 answers
  • You drop a stone down off a bridge. You are able to count to 4.0 seconds when it finally hits the water. How high is the bridge?
    6·1 answer
  • Why it is important for scientists and engineers to understand the relationship between a structure and its function?
    15·1 answer
  • The EMF does not depend on which of the following?
    14·1 answer
  • Which part of the electromagnetic specturm has the lowest radiant energy?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!