fifth midterm -- review problems
... A 1.00 kg air cart similar to the one used in class is moving horizontally at a velocity of 0.256 m/s to the left. The cart hits a second 0.500 kg cart moving at a speed of 0.128 m/s in the same direction. If the two carts stick together, find the final velocity (speed and direction). Find the inter ...
... A 1.00 kg air cart similar to the one used in class is moving horizontally at a velocity of 0.256 m/s to the left. The cart hits a second 0.500 kg cart moving at a speed of 0.128 m/s in the same direction. If the two carts stick together, find the final velocity (speed and direction). Find the inter ...
Unit 11: Astronomy
... 2. Determine the efficiency of a photovoltaic cell. You have learned that the sun produces 3.9 × 1026 watts of energy every second. Of that amount, 1,386 watts fall on a square meter of Earth’s atmosphere and even less reaches Earth’s surface. This energy can be used to generate electricity without ...
... 2. Determine the efficiency of a photovoltaic cell. You have learned that the sun produces 3.9 × 1026 watts of energy every second. Of that amount, 1,386 watts fall on a square meter of Earth’s atmosphere and even less reaches Earth’s surface. This energy can be used to generate electricity without ...
Pattern Recognition in Physics The complex planetary
... intervals of time, and (3) the square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit. If the orbital period, T , is measured in years and the semi-major axis, a, is measured in astronomical units (AU, the average Sun–Earth distance), Kepler’s third ...
... intervals of time, and (3) the square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit. If the orbital period, T , is measured in years and the semi-major axis, a, is measured in astronomical units (AU, the average Sun–Earth distance), Kepler’s third ...
Stellar Evolution Task
... During the Planetary Nebula phase the star becomes a white dwarf and ejects all its mass into space. What remains is a white dwarf in the centre and a beautiful symetric nebula. It looks like a ring since the mass the star has lost is in a spherical shell around it. ...
... During the Planetary Nebula phase the star becomes a white dwarf and ejects all its mass into space. What remains is a white dwarf in the centre and a beautiful symetric nebula. It looks like a ring since the mass the star has lost is in a spherical shell around it. ...
Other Planetary Systems - Colorado Mesa University
... NHP = total number of habitable planets in galaxy flife = fraction of habitable planets with life fciv = fraction of life-bearing planets with civilization at some time fnow = fraction of civilizations around now © 2010 Pearson Education, Inc. ...
... NHP = total number of habitable planets in galaxy flife = fraction of habitable planets with life fciv = fraction of life-bearing planets with civilization at some time fnow = fraction of civilizations around now © 2010 Pearson Education, Inc. ...
Life Beyond Earth Exhibition
... exhibit, special tactile components – touchable microbes, planet surfaces, and Milky Way galaxy (including the position of our solar system within the galaxy) -- provide accessibility to visitors with vision limitations, and Braille guides are available for use in the exhibit. Other elements of the ...
... exhibit, special tactile components – touchable microbes, planet surfaces, and Milky Way galaxy (including the position of our solar system within the galaxy) -- provide accessibility to visitors with vision limitations, and Braille guides are available for use in the exhibit. Other elements of the ...
Lesson (1)
... 4-On transferring water from one container to another, its ……………. will change. 5- Matter can be pressed in case of ………… state. 6- The …………. substances have definite shapes and volumes. 7- Changing of ice into water is considered a ……………. process. 8- The continuity of decreasing water temperature cha ...
... 4-On transferring water from one container to another, its ……………. will change. 5- Matter can be pressed in case of ………… state. 6- The …………. substances have definite shapes and volumes. 7- Changing of ice into water is considered a ……………. process. 8- The continuity of decreasing water temperature cha ...
Asteroseismic constraints on Asymmetric Dark Matter: Light particles
... for which astrometric observations are also available, for example stars observed by both Kepler and Hipparcos [52]. Thus, the ideal candidate is an object with highly constrained fundamental properties and a large number of detected oscillation modes. Binary stars are also very interesting since so ...
... for which astrometric observations are also available, for example stars observed by both Kepler and Hipparcos [52]. Thus, the ideal candidate is an object with highly constrained fundamental properties and a large number of detected oscillation modes. Binary stars are also very interesting since so ...
A Modern View of the Universe
... planets and their moons, and countless smaller objects that include rocky asteroids and icy comets. Keep in mind that our Sun is a star, just like the stars we see in our night sky. Our solar system belongs to the huge, disk-shaped collection of stars called the Milky Way Galaxy. A galaxy is a grea ...
... planets and their moons, and countless smaller objects that include rocky asteroids and icy comets. Keep in mind that our Sun is a star, just like the stars we see in our night sky. Our solar system belongs to the huge, disk-shaped collection of stars called the Milky Way Galaxy. A galaxy is a grea ...
document
... The second advance, the theory of natural selection, suggested an answer. According to this proposal, set forth by Charles Darwin and Alfred Russel Wallace, some of the differences between individuals in a population are heritable. When the environment changes, individuals bearing traits that provid ...
... The second advance, the theory of natural selection, suggested an answer. According to this proposal, set forth by Charles Darwin and Alfred Russel Wallace, some of the differences between individuals in a population are heritable. When the environment changes, individuals bearing traits that provid ...
W. M. White Geochemistry Chapter 10: Cosmochemistry
... we learn about the evolution of the Earth by examining old rocks, we can learn about the evolution of the cosmos by looking at old stars. The old stars of Population II are considerably poorer in heavy elements than are young stars. In particular, Population II stars have a Fe/H ratio typically a fa ...
... we learn about the evolution of the Earth by examining old rocks, we can learn about the evolution of the cosmos by looking at old stars. The old stars of Population II are considerably poorer in heavy elements than are young stars. In particular, Population II stars have a Fe/H ratio typically a fa ...
Constraints on Long-Period Planets from an L
... to the outer limits of RV sensitivity. Second, planetary systems with ages up to several hundred Myr may still be undergoing substantial dynamical evolution due to planet-planet interactions (Juric & Tremaine 2007; Gomes et al. 2005). While finding systems in the process of dynamical evolution would ...
... to the outer limits of RV sensitivity. Second, planetary systems with ages up to several hundred Myr may still be undergoing substantial dynamical evolution due to planet-planet interactions (Juric & Tremaine 2007; Gomes et al. 2005). While finding systems in the process of dynamical evolution would ...
Young Astronomers Digest
... you are), this month’s issue is on the Myths and Urban Legends of Astronomy. For the younger minds, we’ve laid out myths like the phases and the spinning of the moon (yes it does spin!) as well as why stars actually don’t come in only the colour white and why Polaris may not be as bright as you thin ...
... you are), this month’s issue is on the Myths and Urban Legends of Astronomy. For the younger minds, we’ve laid out myths like the phases and the spinning of the moon (yes it does spin!) as well as why stars actually don’t come in only the colour white and why Polaris may not be as bright as you thin ...
The Sun and Stars 4.1 Energy formation and layers of the Sun 4.2
... travel. The more distant the star, the longer it will take the light to reach Earth. For most stars, light travels years, if not decades or even centuries before it has covered the vast distances to reach us on Earth. In comparison, it takes only eight minutes for the light to travel through the vac ...
... travel. The more distant the star, the longer it will take the light to reach Earth. For most stars, light travels years, if not decades or even centuries before it has covered the vast distances to reach us on Earth. In comparison, it takes only eight minutes for the light to travel through the vac ...
Life Cycle of a Star Lesson Plan
... A white dwarf is very hot when it is formed, but since it has no source of energy, it will gradually radiate away its energy and cool down. This means that its radiation, which initially has a high color temperature, will lessen and redden with time. Over a very long time, a white dwarf will cool to ...
... A white dwarf is very hot when it is formed, but since it has no source of energy, it will gradually radiate away its energy and cool down. This means that its radiation, which initially has a high color temperature, will lessen and redden with time. Over a very long time, a white dwarf will cool to ...
17_LectureOutline
... • Luminosity class can distinguish giant star from mainsequence one in the same spectral class • If spectrum is measured, can find luminosity; combining this with apparent brightness allows distance to be ...
... • Luminosity class can distinguish giant star from mainsequence one in the same spectral class • If spectrum is measured, can find luminosity; combining this with apparent brightness allows distance to be ...
D ASTROPHYSICS
... and, probably, at least this number of planets. Some galaxies exist in isolation but the majority of them occur in groups known as clusters that have anything from a few dozen to a few thousand members. The Milky Way is part of a cluster of about 30 galaxies called the “Local Group” which includes A ...
... and, probably, at least this number of planets. Some galaxies exist in isolation but the majority of them occur in groups known as clusters that have anything from a few dozen to a few thousand members. The Milky Way is part of a cluster of about 30 galaxies called the “Local Group” which includes A ...
AN ATTEMPT To prove the MOTION OF THE EARTH FROM
... the rest of the Earth and the motion of the Heavens, seems generallyso plausible that none of these can resist it. Now though it may be said, 'Tis not only those but great Geometricians, Astronomers and Philosophers have also adhered to that side, yet generally the reason is the very same.For most ...
... the rest of the Earth and the motion of the Heavens, seems generallyso plausible that none of these can resist it. Now though it may be said, 'Tis not only those but great Geometricians, Astronomers and Philosophers have also adhered to that side, yet generally the reason is the very same.For most ...
TAKS objective 5 Earth and Space Systems
... The Sun is a Star Our sun is a medium-size yellow star. It is 4.6 billion years old. In the sun, hydrogen undergoes nuclear fusion, a process that releases vast amounts of energy. During fusion hydrogen atoms join to form helium atoms. Hydrogen fusion is the source of light, heat, and other radiati ...
... The Sun is a Star Our sun is a medium-size yellow star. It is 4.6 billion years old. In the sun, hydrogen undergoes nuclear fusion, a process that releases vast amounts of energy. During fusion hydrogen atoms join to form helium atoms. Hydrogen fusion is the source of light, heat, and other radiati ...
Electronic Text Book Unit 11
... ! Name the differences between stars, planets, galaxies, and the universe. ! Convert between kilometers and light years. ! Explain how refracting and reflecting telescopes work. ! Name some telescopes that examine other types of electromagnetic waves. ! Describe how satellites, space probes, and pil ...
... ! Name the differences between stars, planets, galaxies, and the universe. ! Convert between kilometers and light years. ! Explain how refracting and reflecting telescopes work. ! Name some telescopes that examine other types of electromagnetic waves. ! Describe how satellites, space probes, and pil ...
Chapter 2 Surveying the stars 2.1 Star magnitudes
... gravitational attraction. Galaxies are millions of light years apart, separated from one another by empty space. The most distant galaxies are about ten thousand million light years away and were formed shortly after the Big Bang. The Universe is thought to be about 13 thousand million (i.e. 13 bill ...
... gravitational attraction. Galaxies are millions of light years apart, separated from one another by empty space. The most distant galaxies are about ten thousand million light years away and were formed shortly after the Big Bang. The Universe is thought to be about 13 thousand million (i.e. 13 bill ...
Ancient Egyptian Astronomy
... Medieval people were aware of all of the constellations we recognize in the Northern Hemisphere today. Most medieval astronomers used Aristotle's vision of the sky, which was made up of concentric crystal spheres. The planets, stars, and other bodies were each held in their own sphere. Thomas Aquina ...
... Medieval people were aware of all of the constellations we recognize in the Northern Hemisphere today. Most medieval astronomers used Aristotle's vision of the sky, which was made up of concentric crystal spheres. The planets, stars, and other bodies were each held in their own sphere. Thomas Aquina ...
Stellar Metamorphosis as Alternative to Nebular Hypothesis
... of tons of star shrapnel known as asteroids, meteorites and small moon-like objects that are undifferentiated. [26] Therefore TYC 8241 2652 is not evidence of star/planet formation but star/planet destruction caused by objects clearing their path for more stable orbits. [27] Mainstream has this proc ...
... of tons of star shrapnel known as asteroids, meteorites and small moon-like objects that are undifferentiated. [26] Therefore TYC 8241 2652 is not evidence of star/planet formation but star/planet destruction caused by objects clearing their path for more stable orbits. [27] Mainstream has this proc ...
The High Eccentricity of the Planet Around 16 Cyg B
... Both features are very intriguing. Prior to the discovery of 16 Cyg B planet, Mazeh, Mayor & Latham (1996) pointed out that the other seven ”planet-candidates” display a correlation between their masses and orbital eccentricities. Companions with masses smaller than about 5 Jupiter masses have circu ...
... Both features are very intriguing. Prior to the discovery of 16 Cyg B planet, Mazeh, Mayor & Latham (1996) pointed out that the other seven ”planet-candidates” display a correlation between their masses and orbital eccentricities. Companions with masses smaller than about 5 Jupiter masses have circu ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently. On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.