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4. What is a constellation? Give examples.
5/ What a short note on meteors and meteorites.​

Answer 1

Answer:

Ans 1. The word constellation comes from Latin: con-, meaning together and stella- meaning stars. Some examples of constellations are Ursa major, Orion, Leo, Draco, Cancer etc. People used constellations to tell the difference in the colors. Constellations were also used to group stars.

Explanation:

Ans 2. A meteor, known colloquially as a shooting star or falling star , is the visible passage of a glowing meteoroid, micrometeoroid, comet or asteroid through Earth's atmosphere, after being heated to incandescence by collisions with air molecules in the upper atmosphere, creating a streak of light via its rapid motion and ...

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Answer 2

Explanation:

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

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