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Lecture 1_Planets an..
Lecture 1_Planets an..

... Poseidon. She was the daughter of Chaos, and the mother of all creatures (according to some). She was the first and the last, and wanted all of her children, no matter what. She was primarily spoken of as a Mother of other Gods, rather than having her own myths. http://www.paleothea.com/Majors.html ...
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Document

... The first color image of the surface of Chryse Planitia on Mars obtained in 1976 by the Viking Lander. The surface soil is red, because when basalt weathers, red iron oxide forms, just like in Hawaii. The color was calibrated by the known color of the cable in the foreground on the Viking Lander. N ...
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Planets - WordPress.com
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... about the sun as their midpoint, and therefore the sun is the center of the universe. What appear to us as motions of the sun arise not from its motion but from the motion of the earth and our sphere, with which we revolve about the sun like any other planet. The earth has, then, more than one motio ...
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... processes that affect planetary surfaces. Briefly explain any two. Erosion is displacement of any solid particles such as rocks, sediments, soil, etc. which is usually caused by currents from water, wind or snow which usually occur on downward motion. This process is one of the common causes of chan ...
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... Heliocentric: A model of the solar system in which Earth & the other planets revolve around the sun (p 540) Moon: A natural satellite that revolves around a planet (p 543) Nuclear fusion: The process by which hydrogen atoms join together in the sun’s core to form helium (p 546) Radiation zone: A reg ...
Do not write on this copy write answers on answer sheet Earth, Solar
Do not write on this copy write answers on answer sheet Earth, Solar

... 10. (2d). Why is Mars the most likely destination for manned voyages and surface exploration? A. Earth is closest to Mars B. Mars has two moons to explore C. Mars has some conditions similar to Earth D. Mars has life making it a more interesting destination 11. (1c) What holds the planets in their o ...
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... of other galaxies, each with hundreds of billions of stars. Some  stars appear to have planets. Some of those planets could have  life on them, like our Earth.   Are there aliens out there? Do they eat bananas?  Space probes are traveling through space right now to collect  information. One probe ev ...
Newton`s Three Laws: Answer the questions below using pages 389
Newton`s Three Laws: Answer the questions below using pages 389

... 5. What is Newton’s third law? What is another way to state the third law? Give three examples from the textbook. Does a pencil dropped pull on the Earth? Why don’t you see the Earth move? Why don’t action-reaction forces cancel? Explain why the forces in Figure 17 don’t cancel in the left picture b ...
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3-The solar system

... 3-which of these is not an inner planet? a. Jupiter b. Mercury c. Mars d. Venus Write the name of each planet beside the suitable sentence: (Mercury –Venus –Earth Mars-Jupiter) 1-The red planet. 2-The largest planet in the solar system 3-The only planet that supports life. 4-The closest planet to th ...
The Ptolemaic Geocentric Universe
The Ptolemaic Geocentric Universe

... complicated as Ptolemy's and no more accurate! The order of the spheres is similar to the modern view of the solar system with the Sun at the center followed by Mercury, Venus, Earth (with the Moon still orbiting the Earth), Mars, Jupiter, and Saturn. Copernicus then puts the sphere of the fixed sta ...
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Earth's rotation



Earth's rotation is the rotation of the planet Earth around its own axis. The Earth rotates from the west towards east. As viewed from North Star or polestar Polaris, the Earth turns counter-clockwise.The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface. This point is distinct from the Earth's North Magnetic Pole. The South Pole is the other point where the Earth's axis of rotation intersects its surface, in Antarctica.The Earth rotates once in about 24 hours with respect to the sun and once every 23 hours 56 minutes and 4 seconds with respect to the stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation. Atomic clocks show that a modern-day is longer by about 1.7 milliseconds than a century ago, slowly increasing the rate at which UTC is adjusted by leap seconds.
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