Chapter 9 Homework - moving charged particles in the solar...

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Chapter 9 Homework: 1. A comet entering the inner solar system from afar will: form a coma and some time later form a tail. The coma consists of dust and gas released from the comet as it is heated by the Sun; only later, as the solar wind affects the comet, does material from the coma extend out to form a tail. 2. During the time that a comet passes through the inner solar system, the comet can appear quite bright because: sunlight reflects off the comet’s tail and coma. Comets are too cool to emit their own visible light, so they shine by reflecting sunlight. The coma and tail can become quite large, and therefore reflect a lot of sunlight. 3. A comet’s plasma tail always points directly away from the Sun because: of pressure exerted by the fast-
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Unformatted text preview: moving charged particles in the solar wind. The plasma tail is always directed away from the Sun because it is pushed outward by the solar wind. Comet: A relatively small, icy object that orbits a star. Like asteroids, comets are officially considered part of a category known as small solar system bodies Meteors: A flash of light caused when a particle from space burns up in our atmosphere. Asteroid: A relatively small and rocky object that orbits a star; asteroids are officially considered part of the small solar system bodies....
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