In general, as stars go through the last stage of post-main sequence evolution they will lose mass in the process of settling down into their final state. Explain the mass-loss process and the final state of the star for a low mass star
What will be an ideal response?
For a low mass star, the hydrogen fuel is exhausted and the star begins to fuse helium. When this happens the star expands into a red giant. Eventually the helium is exhausted and the outer layers of the star are ejected as a planetary nebula, leaving a tiny, hot white dwarf behind.
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Asteroids are examples of _____
A) comets B) stars C) space debris D) major planets
A stretch of land is 12.5 km long on a map
(a) What would be its length to an observer moving by, parallel to the stretch, at 0.95c? (b) Which length is the proper length? (c) How fast must the observer move for the land to appear 6.50 km long?
An uncharged conductor is supported by an insulating stand. I pass a positively charged rod near the left end of the conductor, but do not touch it. The right end of the conductor will be
a. negative. b. positive. c. neutral. d. attracted.
Which of these procedures evaluates the effect of two waves meeting?
a. Multiply the displacements at each point of the two individual waves. b. Add the magnitudes of the displacements at each point of the individual waves. c. Add the displacements at each point of the two individual waves. d. Subtract the displacement of one wave from the other at each point. e. Ignore the second wave in calculating the displacement.