What evidence do we have that distant galaxies are moving away from us?

SAT

2 answers:

horrorfan [7]3 years ago

7 0

Answer:

... because Edwin Hubble was the man that proved it from his observations. He proved that there is a direct relationship between the speeds of distant galaxies and their distances from Earth. This is now known as Hubble's Law.

Explanation:

Vitek1552 [10]3 years ago

4 0

Answer:

Using the redshift of electromagnetic spectra you can determine the current distance and speed of remote galaxies. Observing the same galaxies over time you can determine that the galaxies are moving away from us and accelerating. You will also note that their speed is proportional to their distance (the further away they are the faster they are moving), which is a feature of metric expansion.

Explanation:

You might be interested in

Suppose that 3. 33 g of acetone at 25. 0 °c condenses on the surface of a 44. 0-g block of aluminum that is initially at 25 °c.

Vlada [557]

The final temperature on the block is 25 degrees.

Heat is a form of energy. This question shows that energy is transferred from the acetone to the metal block.

Data given;

M1 = 3.33g
T1 = 25 degrees
M2 = 44g
T2 = 25 degree
C1 = 124.5 J mol K
C2 = 0.89 J/g K

<h3>Heat Transfer</h3>

Applying the principles of heat transfer,

Heat loss = Heat gain

$m1c1(T1 - T3) = m2c2(T3 - T2)\\3.33*124.5*(25.0 - T3) = 44*0.89*(T3 - 25)\\10364.625 - 414.585T3 = 39.16T3 - 979\\10364.625+979 = 414.585T3 +39.16T3\\11343.25 = 453.745T3\\T3 = \frac{11343.25}{453.745} \\T3 = 24.999\\T3 = 25$

From the calculation above, the final temperature on the block is 25 degrees.

Learn more on heat transfer here;

brainly.com/question/15003174

3 0

2 years ago

In model 1 a pathogen (virus, bacteria, foreign protein, parasite) has entered the bloodstream of an individual. Draw the symbol

alekssr [168]

There are different kinds of pathogens. The representation of the symbol that stands for the pathogen are;

The helper T-cell is represented like a Circle with the Th wrote inside.

The surface protein on the Th cell is the symbol that looks like this ⊥ or T Th cells.

Pathogens are known to be microorganisms that do invade the bloodstream. It can be easily see among the white cells.

Helper T-cell is known to consist of T-Lymphocytes which monitors the regulation of the immune system. T-cells are regarded as the helper cells that monitors the initial response in front of the pathogen. They includes; TH1, TH2, and TH17.

Learn more about pathogens from

brainly.com/question/8102979

4 0

2 years ago

Each of 6 samples has a different standard deviation. How many of the 6

ivann1987 [24]

The number of six samples that could belong to the same population is equivalent to six.

Option A is the correct answer.

<h3>What is the standard deviation?</h3>

The standard deviation is the indicator to determine the variation between the set of amounts as given in the statistical information.

The population is referred to as the entire information being prescribed in data relating to any concept. If the number of samples in a population is 10, then the samples in the same population will also be 10. This shows the number of samples is always equal to the samples in the same population.