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dedylja [7]
3 years ago
11

What is answer of question 7

Physics
2 answers:
Stella [2.4K]3 years ago
8 0
Option A it helps us to work
kondaur [170]3 years ago
4 0
A. (They help us work)
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Every star is part of a constellation and is assigned a Greek letter within the constellation. Many stars still bear ancient Ara
Andru [333]

Answer:

All 88 constellations are based on figures that originated in Greek and Middle Eastern mythology. (<em>Correct</em>)

The α star in a constellation is usually brighter than the β star. (<em>Correct</em>)

All stars are part of some constellation. (<em>Correct</em>)

The modern constellations have English names rather than Latin like the ancient ones. (<em>Correct</em>)

Explanation:

Constellations were grouped by different civilizations as mean to be oriented when they were making observations of the sky (they could see as maps of certain regions). Each constellation is an arrangement of several stars in a specific figure (animals, mythological characters and objects), things that were important for that civilization.

The letter \alpha is given to the brightest star in a constellation while the other letters of the Greek alphabet are assigned to the other stars that belong to that specific constellation according to their brightness. For example in the Orion constellation the brightest star is Betelgeuse so it is classified with an \alpha; \beta to Rigel, the second in brightness and so on. That classification system was established by the astronomer Johann Bayer in 1603.

The modern constellations have English names, for example the constellations of Telescopium, Fornax, Sculptor, Chamaeleon, among others.

As constellations represent maps of different regions in the sky, any star will be related with them. For that reason is correct to say that all stars are part of some constellation.

8 0
4 years ago
Which question cannot be answered through making measurements?
Margarita [4]

Answer: it would be A

Explanation: how are we to measure the air of a square mile

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Explain why a valve would last longer in the pulmonary position than in the aortic position
Novosadov [1.4K]

Answer:The pulmonary valve is usually under less stress because the right pumping chamber does not need to generate as much force to push blood to the lungs. Therefore, a replacement valve can be more likely to succeed in the pulmonary position because demand on this valve is less.

Explanation:

4 0
3 years ago
NEED ANSWERS ASAP !!!
morpeh [17]

Answer:

I think its B

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because "This means that when you rubbed the plastic comb along your hair, your hair resisted the movement of the comb and slowed it down. The friction between two surfaces can cause electrons to be transferred from one surface to the other."

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3 years ago
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If energy efficiency is improved, the cost of energy would decrease and _____. more coal would be available less electricity wou
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...less electricity would be used.
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3 years ago
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