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garri49 [273]
3 years ago
8

Which of the following paraphrases Hubble Law?

Geography
1 answer:
77julia77 [94]3 years ago
4 0
<h2>Answer: The greater the distance to a galaxy, the greater its redshift</h2>

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

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

From there, Hubble deduced that the farther the galaxy is, the more redshifted it is in its spectrum, and noted that all galaxies are <em>"moving away from each other with a speed that increases with distance"</em>, and enunciated the now called<u> Hubble–Lemaître Law</u>.

This means in the past the distance between two galaxies was smaller than at present, being this the proof that <u>the universe is expanding</u> (like a balloon expands when it is filled with air or another gas).  

At this poitn it is important to stay clear that <u>the redshift is not produced by the relative movement of the galaxies with each other</u>.  This effect is in fact, due to the <u>own expansion of the space</u> among the galaxies.  

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6. Decreasing the amount of water vapor in the atmosphere will decrease the __________.
Molodets [167]

Answer:

The correct option is: dew point temperature                                          

Explanation:

Dew point refers to the temperature of the air when it is saturated with water vapor. The dew point temperature is dependent on the humidity in the air. It is <u>directly proportional to humidity and moisture content in air</u>. <u>Therefore, a lower dew point means lower moisture content. </u>

When the air is cooled beyond its dew point, the water vapour in the air condenses to liquid water, called dew.

4 0
2 years ago
How could I measure the hours of light in a day? And how can I make a plan?
lapo4ka [179]
Maybe there's an app for that? Some kind of time lapse app? Or maybe set up a magnifying glass or a crystal ball on a stand and a piece of paper under it. As the sun passes, it will might burn a line on the page. As to how you would read this line, you would need some kind of measurement system - maybe do a baseline the day before and use you watch to record start and finish times.
7 0
3 years ago
What is the prime issue affecting the Galop Canal? O A) Agricultural effluent is contaminating the waters B) Collapse of the sid
attashe74 [19]

Answer:

C. Ageing infrastructure as exceptionally expensive to maintain.

Explanation:

Near the South Nation River lies the Galop Canal, the historical predecessor to the St. Lawrence Seaway. Galop Canal ran 12 kilometers from Iroquois to Cardinal. The nature of life along the St. Lawrence banks began to change and newer, larger, locks were built to ship larger amounts of cargo from the Great Lakes.

4 0
3 years ago
Find the lateral area of this cone.
miv72 [106K]

Answer:

LA = 20π cm²

Explanation:

Given the following data;

Radius, r = 4 cm

Height = 3 cm

To find the lateral area (LA) of a cone;

First of all, we would determine the slant height by applying Pythagorean' theorem.

Hypotenuse² = opposite² + adjacent²

Where;

Hypotenuse is the slant height.

Opposite is the height of the cone.

Adjacent is the radius of the cone.

Substituting into the expression, we have;

l² = 3² + 4²

l² = 9 + 16

l² = 25

Taking the square root of both sides, we have;

l = √25

l = 5 cm

Next, we find the LA using the formula;

LA = πrl

Where;

r is the radius of the cone.

l is the slant height of the cone.

Substituting into the formula, we have;

LA = 4 * 5 * π

LA = 20π cm²

6 0
2 years ago
Primary process how deltas are formed weathering erosion deposition
lord [1]
Rockslides on hills and mountains are created as gravity erodes and deposits rocks. In the desert, the deposition patterns of the wind creates sand dunes. Streams create deltas when they deposit sand and sediment at their mouths, where the water slows to meet the ocean.
7 0
3 years ago
Read 2 more answers
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