chap18_s05_probs
... = 1.7 10 kilogram per meter3 4/3 R 3 = 1.7 10-24 kilogram per meter3 13.51 (6.4 106 meters)3 = 1.7 10-24 kilogram per meter3 1.1 1021 meters3 = 0.0019 kilograms or 1.9 grams (!) A very small mass. PROBLEM 18-10: To ionize interstellar hydrogen, a photon must have a wavelen ...
... = 1.7 10 kilogram per meter3 4/3 R 3 = 1.7 10-24 kilogram per meter3 13.51 (6.4 106 meters)3 = 1.7 10-24 kilogram per meter3 1.1 1021 meters3 = 0.0019 kilograms or 1.9 grams (!) A very small mass. PROBLEM 18-10: To ionize interstellar hydrogen, a photon must have a wavelen ...
day04
... Once the telescope was used to observe Venus, the geocentric theory could not explain the phases of Venus. The heliocentric theory of Copernicus explained many of Galileo’s observations, but also used circular orbits. More accurate measurements did not agree with the simple theory of Copernicus (cir ...
... Once the telescope was used to observe Venus, the geocentric theory could not explain the phases of Venus. The heliocentric theory of Copernicus explained many of Galileo’s observations, but also used circular orbits. More accurate measurements did not agree with the simple theory of Copernicus (cir ...
Student Literacy
... While the stars in the constellation Orion may appear to be near each other when viewed from Earth, they are actually very far apart from one another. ...
... While the stars in the constellation Orion may appear to be near each other when viewed from Earth, they are actually very far apart from one another. ...
Stellar Evolution and our Sun (Song “The Sun” from “Severe Tire
... Velocity (bee) = distance/ time elapsed since bear stole the hive So, we can date the universe by calculating the time elapsed since any two galaxies (that are now receding) were in contact. Age = relative distance/relative velocity H0 (Hubble constant at this time) = current rate of expansion of th ...
... Velocity (bee) = distance/ time elapsed since bear stole the hive So, we can date the universe by calculating the time elapsed since any two galaxies (that are now receding) were in contact. Age = relative distance/relative velocity H0 (Hubble constant at this time) = current rate of expansion of th ...
planet
... • Complicated definition - “A celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its ...
... • Complicated definition - “A celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its ...
Sample Midterm - IUPUI Physics
... 4. We know the sun is not powered by chemical fuel (generating energy by breaking molecules) because: a) we have not yet detected any hydrocarbons in the sun b) the color of light the sun emits is not consistent with a chemical powered flame c) the sun would only last a few thousand years if it was ...
... 4. We know the sun is not powered by chemical fuel (generating energy by breaking molecules) because: a) we have not yet detected any hydrocarbons in the sun b) the color of light the sun emits is not consistent with a chemical powered flame c) the sun would only last a few thousand years if it was ...
The Edge of the Solar System The Oort Cloud
... sun (Kuiper belt ends at 55 AU) Centauri is 270,000 AU from sun • Proxima • Contains between 0.1 and 2 trillion comets between Oort Cloud Comets: 50-500 million • Distance km (0.33-3.33 AU) • Surface temp. in Oort Cloud ~5-6 K (Kuiper belt 30-60 K) • Named after Jan Oort ...
... sun (Kuiper belt ends at 55 AU) Centauri is 270,000 AU from sun • Proxima • Contains between 0.1 and 2 trillion comets between Oort Cloud Comets: 50-500 million • Distance km (0.33-3.33 AU) • Surface temp. in Oort Cloud ~5-6 K (Kuiper belt 30-60 K) • Named after Jan Oort ...
The Oort Cloud
... sun (Kuiper belt ends at 55 AU) • Proxima Centauri is 270,000 AU from sun • Contains between 0.1 and 2 trillion comets • Distance between Oort Cloud Comets: 50-500 million km (0.33-3.33 AU) • Surface temp. in Oort Cloud ~5-6 K (Kuiper belt 30-60 K) • Named after Jan Oort ...
... sun (Kuiper belt ends at 55 AU) • Proxima Centauri is 270,000 AU from sun • Contains between 0.1 and 2 trillion comets • Distance between Oort Cloud Comets: 50-500 million km (0.33-3.33 AU) • Surface temp. in Oort Cloud ~5-6 K (Kuiper belt 30-60 K) • Named after Jan Oort ...
AST 301—Review for Exam 3 Consult “Guide to Reading and Study
... that there are several techniques that could be used to detect extrasolar planets, but that basically only one has been so far successful (with a few recent detections using another technique). Can you explain why that is? (We also went over this in class.) Of the numerous extrasolar planets that ha ...
... that there are several techniques that could be used to detect extrasolar planets, but that basically only one has been so far successful (with a few recent detections using another technique). Can you explain why that is? (We also went over this in class.) Of the numerous extrasolar planets that ha ...
The Sun
... The Sun The Sun is gaseous and rotates differentially, and these facts radically affect the character of solar magnetism. Because the Sun rotates more rapidly at the equator than at the poles, the differential rotation distorts the solar magnetic field, wrapping it around the solar equator, eventua ...
... The Sun The Sun is gaseous and rotates differentially, and these facts radically affect the character of solar magnetism. Because the Sun rotates more rapidly at the equator than at the poles, the differential rotation distorts the solar magnetic field, wrapping it around the solar equator, eventua ...
Parallax
... Parallax can also be used to determine the distance to the Moon. One way to determine the lunar parallax from one location is by using a lunar eclipse. A full shadow of the Earth on the Moon has an apparent radius of curvature equal to the difference between the apparent radii of the Earth and the S ...
... Parallax can also be used to determine the distance to the Moon. One way to determine the lunar parallax from one location is by using a lunar eclipse. A full shadow of the Earth on the Moon has an apparent radius of curvature equal to the difference between the apparent radii of the Earth and the S ...
The Sun
... The Sun As we look into the atmosphere at the surface of the Sun, the view becomes more and more opaque. The point where it appears to become completely opaque is called the photosphere. Thus, the photosphere may be thought of as the imaginary surface from which the solar light that we see appears ...
... The Sun As we look into the atmosphere at the surface of the Sun, the view becomes more and more opaque. The point where it appears to become completely opaque is called the photosphere. Thus, the photosphere may be thought of as the imaginary surface from which the solar light that we see appears ...
Gravitational Forces
... the Earth but with a radius that is 3.5 times less than the Earth’s . ___________________________________________________________________________________ ___________________________________________________________________________________ ______________________________________________________________ ...
... the Earth but with a radius that is 3.5 times less than the Earth’s . ___________________________________________________________________________________ ___________________________________________________________________________________ ______________________________________________________________ ...
Calculate the Mass of the Milky Way Galaxy
... up to 7 million light years away. By doing so he was able to come up with Hubble's Law, which said that the further galaxies were away from earth the faster they moved away from our planet. Hubble's rule proved the universe was expanding like a big balloon. In 1930, Einstein visited Wilson Observato ...
... up to 7 million light years away. By doing so he was able to come up with Hubble's Law, which said that the further galaxies were away from earth the faster they moved away from our planet. Hubble's rule proved the universe was expanding like a big balloon. In 1930, Einstein visited Wilson Observato ...
Measuring the distance to Galaxies
... luminous but appears only as bright as the one on the left. It must be further away The period is doubled so it is twice as luminous but its brightness is halved. It is less than twice as far away. (It will be 1.4 times as far away). ...
... luminous but appears only as bright as the one on the left. It must be further away The period is doubled so it is twice as luminous but its brightness is halved. It is less than twice as far away. (It will be 1.4 times as far away). ...
E3 – Stellar distances
... • d = (L/(4πb))½ • d = (3.9 x 1029/(4 x π x 9.15 x 10-10))½ • d = 5.8 x 1018 m = 615 ly = 189 pc ...
... • d = (L/(4πb))½ • d = (3.9 x 1029/(4 x π x 9.15 x 10-10))½ • d = 5.8 x 1018 m = 615 ly = 189 pc ...
Earth in Space - Learning Outcomes
... A mass of 8.0 kg is moved from a point in a gravitational field where the potential is –15 J kg-1 to a point where the potential is –10 J kg-1. (a) What is the potential difference between the two points? (b) Calculate the change in potential energy of the mass. (c) How much work would have to be do ...
... A mass of 8.0 kg is moved from a point in a gravitational field where the potential is –15 J kg-1 to a point where the potential is –10 J kg-1. (a) What is the potential difference between the two points? (b) Calculate the change in potential energy of the mass. (c) How much work would have to be do ...
We see apparent retrograde motion when we pass by a
... The Greeks knew that the lack of observable parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected th ...
... The Greeks knew that the lack of observable parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected th ...
Solar System Formation
... Venus is one of the brightest objects in our sky, so it is clearly visible to the naked eye. It can be tricky to spot because it is always near the Sun. It rises and sets with the Sun each day. Ancient civilizations believed Venus was actually two different objects, so they called the one that rose ...
... Venus is one of the brightest objects in our sky, so it is clearly visible to the naked eye. It can be tricky to spot because it is always near the Sun. It rises and sets with the Sun each day. Ancient civilizations believed Venus was actually two different objects, so they called the one that rose ...
ppt
... • Is this acceleration different than g, the gravitational acceleration of an object at the Earth’s surface? – Can calculate the acceleration directly from moon’s orbital speed, and the Earth-moon distance. Physics 107, Fall 2006 ...
... • Is this acceleration different than g, the gravitational acceleration of an object at the Earth’s surface? – Can calculate the acceleration directly from moon’s orbital speed, and the Earth-moon distance. Physics 107, Fall 2006 ...
Solar System - eNetLearning
... Venus is one of the brightest objects in our sky, so it is clearly visible to the naked eye. It can be tricky to spot because it is always near the Sun. It rises and sets with the Sun each day. Ancient civilizations believed Venus was actually two different objects, so they called the one that rose ...
... Venus is one of the brightest objects in our sky, so it is clearly visible to the naked eye. It can be tricky to spot because it is always near the Sun. It rises and sets with the Sun each day. Ancient civilizations believed Venus was actually two different objects, so they called the one that rose ...