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Yuki888 [10]
3 years ago
8

How has the Doppler effect and the redshift of stars and galaxies indicated that the universe is expanding?

Biology
2 answers:
kiruha [24]3 years ago
4 0

Answer:

The effect of red shifting in wavelength is continuously increasing which depicts the expansion of universe.

Explanation:

In Doppler shift there occurs an apparent change in the wavelength of the light emitted by star

For example – If a star is near to earth, the light emitted by it would be shorter in wavelength while a star far away from earth will emit a light that has a longer wavelength.  

Thus a shorter wavelength light is shifted towards  the end of spectrum which is blue while a longer wavelength light shifts towards the red end of spectrum (known as redshift)

The farther the star from earth , the more it is red shifted . The red shift effect is continuously increasing.

Hence, both Doppler and redshift affect depicts that universe is continuously expanding.

sertanlavr [38]3 years ago
3 0
The could tell by solar radiation and dark matter, they didnt know were dark matter was but they new it was there
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mamaluj [8]

Answer:

An egg placed in salt water will float!

Explanation:

In normal tap water, an egg will sink because it's density is greater than the density of water. But, when salt is added to the water, it's density becomes greater than the egg's density. The term used to describe this is "buoyancy."

7 0
2 years ago
Which synapse(s) are specifically responsible for the habituation of the withdrawal response?
fredd [130]

<u>Sensory neuron to motor neuron</u> are specifically responsible for the habituation of the withdrawal response.

  • The withdrawal reflex, which is the automatic withholding of a limb from a painful stimulation, is what is known as this automatic reaction.
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  • A somatic reflex, like the withdrawal reflex, and a visceral reflex, an autonomic reflex, differ in that the latter has an efferent branch.
  • The lower motor neuron in the ventral horn of the spinal cord, which immediately projects to a skeletal muscle to produce its contraction, is the output of a somatic reflex.

learn more about withdrawal response here: brainly.com/question/7157065

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4 0
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NISA [10]

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6 0
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7 0
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The statement above is TRUE.
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