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IRINA_888 [86]
3 years ago
13

What two things balance to maintain the shape of a star?

Mathematics
2 answers:
viktelen [127]3 years ago
8 0

Answer: Pressure and gravity

The stars are formed by the dust and accumulation of gases present in the space. It typically formed by the fusion of the gases such as hydrogen, helium in the space. The pressure of the inner core of the star and the pressure exerted by the gases present outside the star influence the shape of the star.  The celestial bodies of the universe like stars, planets and others are acted upon by the gravitational attraction. This is responsible for keeping all the gaseous molecules present in the star in shape.

mrs_skeptik [129]3 years ago
4 0
- Pressure
- Gravity

hope this helps :D
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Tara wants to fix the location of a mountain by taking measurements from two positions 3 miles apart. From the first position, t
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Answer:

Shortest distance from the mountain is 3.17 miles.

Step-by-step explanation:

From the figure attached,

Let a mountain is located at point A.

Angle between the mountain and point B (∠B) = 53°

Angle between the mountain and point C (∠C) = 78°

Distance between these points = 3 miles

Since, m∠A + m∠B + m∠C = 180°

m∠A + 53° + 78° = 180°

m∠A = 180°- 131° = 49°

By applying sine rule in triangle ABC,

\frac{\text{sin}(49)}{BC}=\frac{\text{sin}(53)}{AC}= \frac{\text{sin}(78)}{AB}

\frac{\text{sin}(49)}{3}=\frac{\text{sin}(53)}{AC}= \frac{\text{sin}(78)}{AB}

\frac{\text{sin}(49)}{3}=\frac{\text{sin}(53)}{AC}

AC = \frac{3\text{sin}(53)}{\text{sin}(49)}

AC = 3.17 miles

\frac{\text{sin}(49)}{3}=\frac{\text{sin}(78)}{AB}

AB = \frac{3\text{sin}(78)}{\text{sin}(49)}

AB = 3.89 miles

Therefore, shortest distance from the mountain is 3.17 miles.

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Answer:

612 Hz.

Step-by-step explanation:

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So the frequency will be:  

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This is called the Doppler effect.

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Answer:

SD=10

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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