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Lera25 [3.4K]
3 years ago
12

What happens to light waves from a star as the star moves toward Earth?

Physics
2 answers:
Ksivusya [100]3 years ago
4 0

Answer:

The other person is right, the answer is they appear to shift towards blue.

Explanation:

Musya8 [376]3 years ago
3 0
This shifts the star’s spectral lines toward the blue end of the spectrum. If the star is moving away from us, it’s waves are effectively stretched out when they reach earth, increasing their wavelength. This shifts the star’s spectral lines toward the red end of the spectrum.
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What are 3 parts of daltons atomic theory ?
Crank
1) all matter is made of atoms , atoms are indivisible and indestructible 2) compounds are formed by a combination of two or more different kinds of atoms 3) a chemical reaction is an arrangement of atoms
7 0
2 years ago
Can Magnetic poles effects each other​
pochemuha

Answer:

Explanation:

But the reality is that: Multiple magnetic fields would fight each other. This could weaken Earth's protective magnetic field by up to 90% during a polar flip. Earth's magnetic field is what shields us from harmful space radiation which can damage cells, cause cancer, and fry electronic circuits and electrical grids.

How do magnetic poles interact? Magnetic poles that are alike repel each other, and magnetic poles that are unlike attract each other. The area of magnetic force around a magnet. The magnetic field lines spread out from the north pole, curve around, and return to the south pole.

When two magnets are brought together, the opposite poles will attract one another, but the like poles will repel one another. This is similar to electric charges. The earth is like a giant magnet, but unlike two free hanging magnets, the north pole of a magnet is attracted to the north pole of the earth.

Magnetic forces are non contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few 'magnetic' metals and not all matter. Magnets are attracted to and repel other magnets.

(hope this helps can i plz have brainlist :D hehe)

3 0
3 years ago
Joey throws a football 30 meters with a force of 10 N. How much work<br> does Joey do?
stich3 [128]

Answer:

300 Joules

Explanation:

Just use the Work formula:

W = F . D

W = 10 . 30

W = 300 Joules

8 0
2 years ago
Which type of heat transfer can happen through empty space?
Scilla [17]
<h2>Answer: Heat transfer by radiation</h2>

Explanation:

There are three ways in which the thermal transfer (heat) occurs:

1. By Conduction, when the transmission is by the <u>direct contact.</u>  

2. By Convection, heat transfer<u> in fluids</u> (like water or the air, for example).  

3. By <u>Radiation</u>, by the electromagnetic waves (they can travel through any medium and in vacumm or empty space)

Since outter space is vacuum (sometimes called "empty"), energy cannot be transmitted by convection, nor conduction. It must be transmitted by electromagnetic waves that are able to travel with or without a medium.

3 0
2 years ago
How would playing a game of soccer, baseball, or basketball be different if inertia didn’t exist?
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This would be a funny game.

Inertia, according to first Law of Newton, means that when you throw a ball it will continue moving unless a force acts over it.

Without inertia, the ball instead of continue moving, would stop as soon as it leaves your hand or foot. You had to stay pasted to the ball unitl it reaches the desired destiny for it continue moving. 
5 0
3 years ago
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