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Chapter 5 Center of Mass and Linear Momentum
Chapter 5 Center of Mass and Linear Momentum

... particle near Earth differs slightly from the gravitational acceleration a g , and the particle’s weight (equal to mg) differs from the magnitude of the gravitational force acting on the particle as computed with Eq.7-1, because Earth is not uniform or spherical and because Earth rotates. Gravitatio ...
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... astronomers Caroline Herschel and Maria Margarethe Kirch. Mitchell was the first American woman to work as a professional astronomer. August 5, 1930: Neil Armstrong born. Neil Alden Armstrong (August 5, 1930 – August 25, 2012) was an American astronaut and the first person to walk on the Moon. He wa ...
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... is evident that the leading velo city of all planets is the same independent of their distance from the sun B ut the spiral in itself a line of do uble curvature by the cours e of the sun its third curvature for a motion in a straight line b eing impossible in sp ace the sun makes a curve himself If ...
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... America, showed that the solar radius was about 0.4 smaller then than during eclipses observed in 1715 (Dunham et al., Science, 210, pp. 12431243, 1980) and in 1925 (Sofia et al., Nature, 304, pp. 522-526, 1983). • Timings of the eclipse duration (2nd and 3rd contacts), and of other Baily’s bead ph ...
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... Mercury is close to solar conjunction and is lost in the evening twilight. Venus is a challenging morning object rising about 75 minutes before sunrise. Mars is visible low in the west after sunset. Jupiter is almost at opposition this month. Saturn is still a morning object. Uranus is in solar conj ...
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... Doesn’t it seem as if the moon’s shape changes night after night? As the moon orbits –the curved path of a celestial object or spacecraft around a star or planet—Earth, it appears as though the moon is changing its shape in the sky. This is because as the moon changes its position, the amount of sun ...
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... Earth is the most unique planet in the solar system for at least two very important reasons. First, it is the only known planet in the universe that supports life. Secondly, it is also the only known planet that has an abundance of water, which is essential for all life. In fact, as much as 70% of E ...
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... modulus of VI is 4.5, and the moduli of VI for the three events are, respectively, 5.6, 7.2, and 5.3. Having shown that the events are neither related to the observation’s conditions nor to the Earth’s atmosphere, we compare them to diffraction profiles of interplanetary objects. The synthetic prof ...
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Basic Properties of the Stars

... The Sun-centered model of the solar system laid out by Copernicus in De Revolutionibus (1543) made a very specific prediction: that the nearby stars should exhibit parallax shifts with respect to the distant background of stars. Tycho Brahe improved positional measures from +/- 10 arc minutes to as ...
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Moons and Small Solar System Bodies Sections 17.1-17.6

... Parts of a Comet • A comet consists of four parts • Nucleus – typically a few kilometers in diameter and composed of rocky or metallic material • Coma (head) – surrounds the nucleus. Several hundred kilometers in diameter. Formed from the nucleus as it approaches 5AU of the Sun. • Tail – long and v ...
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C - ScienceWilmeth5

... length of the shadow from 2P.M. to 4P.M.? A. The length of the shadow will stay the same. B. The length of the shadow will decrease and then increase. C. The length of the shadow will increase. D. The length of the shadow will decrease. ...
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Astronomical unit

The astronomical unit (symbol au, AU or ua) is a unit of length, roughly the distance from the Earth to the Sun. However, that distance varies as the Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 7011149597870700000♠149597870700 meters (about 150 million kilometers, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
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