After<span> the </span>hydrogen<span> fuel at the </span>core<span> has been consumed, the </span>star<span> evolves away from the </span>main sequence<span> on the HR diagram. The behavior of a </span>star<span> now depends on </span>its <span>mass, with </span>stars<span> below 0.23 M</span>☉ becoming<span> white dwarfs directly, whereas </span>stars<span> with </span>up<span> to ten solar masses pass through a red giant stage.</span>
Answer:
Kepler's laws apply: First Law: Planetary orbits are elliptical with the sun at a focus. Second Law: The radius vector from the sun to a planet sweeps equal areas in equal times. Third Law: The ratio of the square of the period of revolution and the cube of the ellipse semimajor axis is the same for all planets.
The kinetic energy depends on several things like how cute I am
Answer:
1. The reason why a plane mirror forms a virtual image is because it doesn't let the light go through it, but it reflects the light, so if you go behind the plane mirror, then you won't see the rays of light since it's not letting the rays of light go behind it.
2. The image cannot be projected onto a screen also.
3. Also, the Rays of light never meet at a focus point, so hence, this is why the plane mirror forms a virtual image.
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The concave lens is a diverging lens, because it causes the light rays to bend away (diverge) from its axis. In this case, the lens has been shaped so that all light rays entering it parallel to its axis appear to originate from the same point, F, defined to be the focal point of a diverging lens.
