Scientists have been continuously presented with questions regarding the mystery that is life. What is life‚ and how did it get started? Their responses to these questions has varied over the years as advances in technology have led to new evidence being brought in from a ranging variety of fields. In the summer of 1993‚ J. William Schopf‚ a paleobiologist reportedly found fossilized imprints of microbial communities between layers of rock that were 3.5 billion years old. This‚ along with other
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provide clues: (1) The Sun‚ planets‚ and large moons generally rotate and orbit in a very organized way. (2) With the exception of Pluto‚ the planets divide clearly into two groups: terrestrial and jovian. (3) The solar system contains huge numbers of asteroids and comets. (4) There are some notable exceptions to these general patterns. 4. What are the basic differences between the "terrestrial and jovian" planets? Which planets fall into each group? Terrestrial - four planets of the inner solar system:
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References: Bennett‚ J. O.‚ Donahue‚ M.‚ Schneider‚ N. O.‚ & Voit‚ M. (2010). The cosmic perspective (6th ed.). Boston‚ MA: Addison Wesley. Retrieved from University of Phoenix Ebook collection Comets‚ Meteors‚ and Asteroids. (2011). Retrieved from http://curious.astro.cornell.edu/comets.php Expansion of the Universe. (2012). Retrieved from http://csep10.phys.utk.edu/astr162/lect/cosmology/expansion.html Saintonge‚ A. (2005). At what speed does the earth move around
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Example problems involving collisions 1) On a horizontal frictionless surface a puck of mass m initially at speed u collides head-on (without rotation) with a stationary puck of mass M. Find the velocities of both puck after the collision if: i) the collision is fully elastic ii) the collision if fully inelastic. i) momentum: kinetic energy: mu = mv+MV (+ve in direction of initial u) 1 /2 m u2 = 1/2 m v2 + 1/2 M V2 2 eqns in 2 unknowns: V = (u - v) m/M substitute in K eqn: u2 = v2 + (M/m) V2 =
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system." In a move that’s already generating controversy and will force textbooks to be rewritten‚ Pluto will now be dubbed a dwarf planet. But it’s no longer part of an exclusive club‚ since there are more than 40 of these dwarfs‚ including the large asteroid Ceres and 2003 UB313‚ nicknamed Xena—a distant object slightly larger than Pluto discovered by Brown last year. "We know of 44" dwarf planets so far‚ Brown said. "We will find hundreds. It’s a very huge category." A clear majority of researchers
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then it is organized every several years. 1977 was formed Ciurlionis quartet. In 1990 the quartet was awarded the Lithuanian National Premium. 1975 the Crimean astrophysicist Nikolaj Cernych discovered a new 8 km diameter asteroid and called it the Ciurlionis asteroid. It orbits round the Sun in approximately four years (average distance from the Sun: 384 mln. km). 1975-76 m. on occasion of M.K.Ciurlionis’ 100-year birth anniversary‚ 26 masters of folk art built a range of 22 sculptures in
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The Space Age February 2013‚ asteroid 2012 DA14 is plummeting towards Earth. My science class at Crestwood Junior High was chatting about this amazing phenomenon. Most of the class is just counting down the minutes until the bell rings. But I had just started my journey through the unknown‚ that is still going on today. Wanting to learn all I can about spacecrafts‚ planets‚ asteroids‚ and the many other things around us. From some of the first spacecrafts‚ all the way to cool technologies that
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Meteorites Meteorites are small extraterrestrial bodies that reach the Earth ’s surface. They are small asteroids‚ approximately boulder-sized or less. While still in space these bodies are called meteoroids. When they enter the Earth ’s atmosphere‚ but before reaching the surface‚ they are called meteors. Seventy nine percent of meteorites are chondrites. Chondrites are balls of mafic minerals with small grain size indicative of rapid cooling. In most chondrites small spherules‚ called chondrules
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: "My husband snores. All men must snore" commits which of these fallacies. Student Answer: CORRECT Hasty generalization Appeal to pity False Cause Post hoc ergo propter hoc 9. Question : "After the asteroid hit the earth‚ there was a tornado. So the
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astronauts exploring and getting ready to head home. Then mission control stated clearly that the trip would be fatal and dangerous due to asteroids blocking the way‚ but Neil’s ego led him to believe that his piloting skills could let him maneuver across without getting hit (he was also homesick and was impatient). But due to his flaws‚ the ship got hit by an asteroid‚ which leads Neil to see his friends die to his blunder. Secondly‚ the main idea for my story is that we should not be overconfident
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