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Study Resources (Astronomy)

Question Possible Duplicate: Why are our planets in the solar system all on the same disc/plane/layer? I've noticed this in many pictures, Planets are shown with a single ring around them (in some particular plane). Taking extreme case... As gravity should act in all the directions, such planets must be covered with asteroids.
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Question Greek astronomers used all of the following ideas or observations as reasons to reject Aristarchus's idea that the Earth rotates and moves around the Sun, except for one. Which one did they NOT use to reject a moving Earth? A. They deduced that the Sun is larger than the Earth. B. They.
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Question On planet Oops, in the double star system of Uh-Oh, a group of scientists ave hypnotically regressed each other and remembered common past lifes. They are all reincarnate of great minds from some planet earth around a star called the Sun. Erastosthenes' reincarnate thinks that he remembers how to measure the.
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Question IP The Electric Field of the Earth The Earth produces an approximately uniform electric field at ground level. This electric field has a magnitude of 110 N/C and points radially inward, toward the center of the Earth. Find the surface charge density (sign and magnitude) on the surface of the Earth. Given.
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Question Indicate whether the following statements are true or false. Indicate whether the following statements are true or false. (Select True, F-False. If the first is T and the rest F, enter TFFFF). A) A star's lifetime is inversely proportional to the cube of its mass. B) More massive stars live longer.
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Question Planetary rings are known to exist for all of the jovian planets. nearer to their planet than any of the planet's large moons. orbiting in the equatorial plane of their planet. composed of a large number of individual particles that orbit their planet in accord with Kepler's third law. all of the above .
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Question Our neighbouring galaxy, the Large Magellanic Cloud, appears about 8 across on the sky and consists of about 1010 stars at a distance of 50 kpc. Its brightest stars have an absolute magnitude of –10.0. Which of the following is true? a) Individual main sequence stars are brighter than the limiting.
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Question Meteorologists classify fronts based on: thermal and moisture characteristics of the airmasses the direction of movement of the airmasses whether the airmasses are in contact with the ground or can only be found aloft (a) and (b) only are correct. (a), (b), and (c) are all correct. If you examine.
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Question In a parallel universe, a spaceship is traveling from Earth to a star that is 1 kiloparsec (kpc) away (1kpc u 3.26 · 103 light years). Each millennium the spaceship covers a distance of .01kpc. However, in each millennium, the universe expands uniformly and the space between the star and.
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Question Imagine that a new telescope has returned the first detailed pictures of the surface of an extrasolar planet. The planet is a large terrestrial world orbiting just inside the frost line of a relatively old star. The planets surface is icy and almost entirely covered in craters, with long cliffs.
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Question Introduction: It took over 1,000 years for people to acknowledge the world was round. It took 600 years for the British to understand the metric system. Evolution (still in debate by some) began to be accepted about 200 years ago. It took about 50 years for the theory of plate.
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Question Most asteroids are probably material from the early solar system that never formed into a planet the remains of an exploded planet that once orbited between Mars and Jupiter material that was captured by the Sun as it passed close to the Sun the remains of comets that have lost their volatile material .
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Question What are the facts or indirect observations that may validate this comet cloud theory? Collateral to this question, is it easy to observe these indirect facts, and is there any special way to observe these Oort comets to validate the theory? Is it acceptable to say there is no cloud and just.
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