3 years ago

Do all protostars become stars?

Physics

2 answers:

Arada [10]3 years ago

7 0

No not all of them. some can though.

jeka57 [31]3 years ago

5 0

Yes, they all eventually become a star.

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The middle one please need done in 45min

netineya [11]

Answer:

600 J

Explanation:

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3 years ago

The distance from Earth to the star Epsilon Eridani is about 10.5 light years. Which of the following statements is true?

Simora [160]

<span>The correct answer is B. - It would take a ray of light 10.5 light years to travel from Earth to Epsilon Eridani, or vice-versa. Using our current technology it would take far longer than 21.0 years for a space ship from Earth to travel that far - I would have to guess many hundreds of years.</span>

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3 years ago

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10) If the mass 2m, the left mass

Romashka-Z-Leto [24]

Answer:

F = $\frac{-Gm_{1}m_{2} }{r^{2} }$ .

Explanation:

Gravitational force between two objects of masses $m_{1}, m_{2}$ kept at a distance r is given by the formula

F = $\frac{-Gm_{1}m_{2} }{r^{2} }$

Here , $m_{1}$ = 2m

$m_{2}$ = $\frac{m}{2}$

Thus , F = $\frac{-G.2m.\frac{m}{2} }{r^{2} }$

F = $\frac{-Gm_{1}m_{2} }{r^{2} }$ .

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3 years ago

1. Which is an advantage of coal energy?

pentagon [3]

Coals energy is affordable and it is easy to burn.

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3 years ago

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How can you increase your cardio respiratory endurance

garik1379 [7]

Answer:

You can increase your cardio respiratory endurance by exercising on the regular base that increase your heart beat and breathing rates. Some examples of good exercise is running, jumping rope, swimming dancing ect.

Explanation:

You are welcome.

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2 years ago