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lord [1]
3 years ago
8

The redshift of a star means that _____.

Physics
2 answers:
Mamont248 [21]3 years ago
6 0
The only thing we know of that can red-shift the light of a star is motion away from us.
Gelneren [198K]3 years ago
4 0
The correct answer is D. the star is getting farther away.

When the light has red-shifted, it shows that everything is moving away from a certain point. This is known as the Doppler effect and proves the Big Bang (which would be the center point that everything is moving away from). Just as a 'for your information', blue shift is when the star is moving towards us.

Hope I helped :)
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castortr0y [4]
Magnetic. Positively. Bind the atoms to form a molecule of a compound.
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3 years ago
In which of these ways can volcanoes help build up land?
irga5000 [103]
The answer would be D. by adding lava to the Earth’s surface. When it hardens this can make rocks.
5 0
3 years ago
When very electronegative atoms, like oxygen, bond to atoms with lower electronegativity, like lithium, what's the result?
umka2103 [35]

(A) The oxygen atom becomes strongly negative.

Explanation:

When a very electronegative atom like oxygen bonds to an atom with a lower electronegativity, like lithium, the oxygen atom becomes strongly negative and the lithium becomes strongly positive.

The attraction between these oppositely charged ions results in the formation ionic bond.

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  • The electronegative nature of the oxgyen allows is to gain the electrons lost by weakly electronegative lthium.
  • Most metals have low electronegativity.
  • They then both will form ions.
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learn more:

Ionic bond brainly.com/question/6071838

#learnwithBrainly

3 0
3 years ago
State Archimedes' principle
OlgaM077 [116]

Explanation:

Archimedes' principle states that the upward buoyant force which is exerted on body when immersed  whether fully submerged or partially in the fluid is equal to weight of fluid which body displaces and this force acts in upward direction at center of mass of displaced fluid.

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<u>Weight of the displaced fluid = Weight of the object - Weight of object in fluid.</u>

6 0
2 years ago
Water flows from the bottom of a storage tank at a rate of r(t) = 300 − 6t liters per minute, where 0 ≤ t ≤ 50. Find the amount
SSSSS [86.1K]

r(t) models the water flow rate, so the total amount of water that has flowed out of the tank can be calculated by integrating r(t) with respect to time t on the interval t = [0, 35]min

∫r(t)dt, t = [0, 35]

= ∫(300-6t)dt, t = [0, 35]

= 300t-3t², t = [0, 35]

= 300(35) - 3(35)² - 300(0) + 3(0)²

= 6825 liters

7 0
3 years ago
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