powerpoint - Physics @ IUPUI
... the universe therefore the sizes and distributions tell you something about the distribution of dark matter when the universe formed! • Also, since the curvature of the universe (aka the cosmological constant) changes the shapes of voids as we see them, we can gain some understanding of what the cur ...
... the universe therefore the sizes and distributions tell you something about the distribution of dark matter when the universe formed! • Also, since the curvature of the universe (aka the cosmological constant) changes the shapes of voids as we see them, we can gain some understanding of what the cur ...
The Milky Way
... The only way to explain the rotation curve of our galaxy is to say that there is lots and lots of mass that is not emitting light. The halo of our galaxy must be full of it. The halo outweighs the disk by a factor of 10. As far as we can tell, this mass doesn’t emit any ...
... The only way to explain the rotation curve of our galaxy is to say that there is lots and lots of mass that is not emitting light. The halo of our galaxy must be full of it. The halo outweighs the disk by a factor of 10. As far as we can tell, this mass doesn’t emit any ...
Supernova and Supernova Remnants lec 1-2
... Euclidean space so that we measure a total flux F (measured in ...
... Euclidean space so that we measure a total flux F (measured in ...
Energy - 3 Science
... • Remember, a law is an observed pattern in nature that we are not trying to explain. • This law states that energy cannot be created or destroyed. • This means that when energy is transformed from on form to another, no energy is lost, and no extra energy is made. ...
... • Remember, a law is an observed pattern in nature that we are not trying to explain. • This law states that energy cannot be created or destroyed. • This means that when energy is transformed from on form to another, no energy is lost, and no extra energy is made. ...
54Notes KE PE Energy transformations
... _____________________ 4. The energy stored in the bonds between atoms is accehilm potential energy. _____________________ 5. The stored energy an object has as a result of its position is aeilnoptt energy. _____________________ 6. An object’s aaccehilmn energy is its total amount of potential and ki ...
... _____________________ 4. The energy stored in the bonds between atoms is accehilm potential energy. _____________________ 5. The stored energy an object has as a result of its position is aeilnoptt energy. _____________________ 6. An object’s aaccehilmn energy is its total amount of potential and ki ...
Word
... Now that you have used Hubble’s constant on your own, describe the significance of Hubble’s constant in your own words. Consider these questions in your explanation. 1. Does the Universe have edges or a center? 2. What does this mean in terms of expansion? 3. Is expansion technically relative to the ...
... Now that you have used Hubble’s constant on your own, describe the significance of Hubble’s constant in your own words. Consider these questions in your explanation. 1. Does the Universe have edges or a center? 2. What does this mean in terms of expansion? 3. Is expansion technically relative to the ...
Section9 - University of Chicago
... As the first massive stars and quasars form they will be emitting lots of UV photons. These will tend to to re-ionize the hydrogen in the Universe (prior to this, hydrogen was last ionized at the surface of last scattering.) In fact, the Universe we see around us today has neutral hydrogen only in d ...
... As the first massive stars and quasars form they will be emitting lots of UV photons. These will tend to to re-ionize the hydrogen in the Universe (prior to this, hydrogen was last ionized at the surface of last scattering.) In fact, the Universe we see around us today has neutral hydrogen only in d ...
Electromagnetic Grav..
... Our introduction of gravitons tacitly follows the idea presented by Ivanov [4]. His hypothesis was referred to in JPL’s paper: Inavov (sic) [140] suggests that the Pioneer anomaly is the manifestation of a superstrong interaction of photons with single gravitons that form a dynamical background in t ...
... Our introduction of gravitons tacitly follows the idea presented by Ivanov [4]. His hypothesis was referred to in JPL’s paper: Inavov (sic) [140] suggests that the Pioneer anomaly is the manifestation of a superstrong interaction of photons with single gravitons that form a dynamical background in t ...
The Scales of Things
... Cepheid determines its luminosity. Thus there is a period-brightness relationship for Cepheids. Since it is easy to measure the period of a variable star and they can be very bright, Cepheids are wonderful for determining distances to galaxies! ...
... Cepheid determines its luminosity. Thus there is a period-brightness relationship for Cepheids. Since it is easy to measure the period of a variable star and they can be very bright, Cepheids are wonderful for determining distances to galaxies! ...
What Do We Really Know About the Universe?
... "We take the side of science in spite of the patent absurdity of some of its constructs, in spite of the failure to fulfill many of its extravagant promises of health and life, in spite of the tolerance of the scientific community for unsubstantiated just-so stories, because we have a prior commitme ...
... "We take the side of science in spite of the patent absurdity of some of its constructs, in spite of the failure to fulfill many of its extravagant promises of health and life, in spite of the tolerance of the scientific community for unsubstantiated just-so stories, because we have a prior commitme ...
Chapter Notes
... Create a graphic organizer to illustrate energy conversions. Draw a picture to represent four different energy conversions you may encounter in everyday life. Be sure to explain what type of energy it starts with and what type of energy it ends with. ...
... Create a graphic organizer to illustrate energy conversions. Draw a picture to represent four different energy conversions you may encounter in everyday life. Be sure to explain what type of energy it starts with and what type of energy it ends with. ...
Energy laws - Shrewsbury Moodle
... Metabolism is a collection of … reactions that take place in the body’s cells to convert the fuel in the food we eat into the … needed to power everything we do. Metabolism is a when we die. ...
... Metabolism is a collection of … reactions that take place in the body’s cells to convert the fuel in the food we eat into the … needed to power everything we do. Metabolism is a when we die. ...
PDF format
... Why should it not be surprising that some galaxies contain a little more than 25% helium, but it would be very surprising if some galaxies contained less. a) A star converts about 25% of its hydrogen into helium before it dies, so galaxies with multiple generations of star formation can have a high ...
... Why should it not be surprising that some galaxies contain a little more than 25% helium, but it would be very surprising if some galaxies contained less. a) A star converts about 25% of its hydrogen into helium before it dies, so galaxies with multiple generations of star formation can have a high ...
Energy What is energy?
... What are some types of energy? Mechanical: The form of energy that is associated with the position and motion of an object. Electrical: The energy of electrical charges and can be potential or ...
... What are some types of energy? Mechanical: The form of energy that is associated with the position and motion of an object. Electrical: The energy of electrical charges and can be potential or ...
1 - Uplift North Hills Prep
... (c) Vega is a very massive star. State why Vega does not undergo gravitational collapse. ● the inward gravitational pressure is balanced by the outward radiative pressure; ...
... (c) Vega is a very massive star. State why Vega does not undergo gravitational collapse. ● the inward gravitational pressure is balanced by the outward radiative pressure; ...
Document
... (c) Vega is a very massive star. State why Vega does not undergo gravitational collapse. ● the inward gravitational pressure is balanced by the outward radiative pressure; ...
... (c) Vega is a very massive star. State why Vega does not undergo gravitational collapse. ● the inward gravitational pressure is balanced by the outward radiative pressure; ...
What is energy?
... • How is energy stored? (give examples). • Compare & contrast the energy of a book sitting high on a shelf with a book falling to the ground. ...
... • How is energy stored? (give examples). • Compare & contrast the energy of a book sitting high on a shelf with a book falling to the ground. ...
Talk - University of Rochester Physics and Astronomy
... Federrath 2013 demonstrated that the spectral index for ρ1/3v depends on the degree of compressive motions, which depends on the nature of the driving (solenoidal vs. compressive). For purely compressive driving, the spectral index for ρ1/3v is closer to -2.1 consistent with Galtier & Banerjee’s mod ...
... Federrath 2013 demonstrated that the spectral index for ρ1/3v depends on the degree of compressive motions, which depends on the nature of the driving (solenoidal vs. compressive). For purely compressive driving, the spectral index for ρ1/3v is closer to -2.1 consistent with Galtier & Banerjee’s mod ...
COMING EVENTS The Pluto Files Volume 37 Number 03 March
... this book will be tough. The challenges are accompanied by a rating (one to four stars, four stars = very difficult), a table with information on the object, a finder chart, a description of how to find the object, and a picture showing how the object will look. Most of these pictures are sketches b ...
... this book will be tough. The challenges are accompanied by a rating (one to four stars, four stars = very difficult), a table with information on the object, a finder chart, a description of how to find the object, and a picture showing how the object will look. Most of these pictures are sketches b ...
Using Vocabulary
... Thermal Energy 24) Suppose a juggler is juggling oranges. At an orange’s highest point, what form of energy does it have? A) mostly potential energy B) mostly kinetic energy C) no potential or kinetic energy D) equal amounts of both 25) The gravitational potential energy of an object depends on whic ...
... Thermal Energy 24) Suppose a juggler is juggling oranges. At an orange’s highest point, what form of energy does it have? A) mostly potential energy B) mostly kinetic energy C) no potential or kinetic energy D) equal amounts of both 25) The gravitational potential energy of an object depends on whic ...
Using Vocabulary
... 24) Suppose a juggler is juggling oranges. At an orange’s highest point, what form of energy does it have? A) mostly potential energy B) mostly kinetic energy C) no potential or kinetic energy D) equal amounts of both 25) The gravitational potential energy of an object depends on which of the follow ...
... 24) Suppose a juggler is juggling oranges. At an orange’s highest point, what form of energy does it have? A) mostly potential energy B) mostly kinetic energy C) no potential or kinetic energy D) equal amounts of both 25) The gravitational potential energy of an object depends on which of the follow ...
Problem 2.13 The resistivity of a silicon wafer at room temperature is
... results in the maximum possible resistivity of silicon at room temperature. (ni = 1010 cm-3, µn = 1400 cm2/V-sec and µp = 450 cm2/V-sec.) Should the silicon be doped at all or do you expect the maximum resistivity when dopants are added? If the silicon should be doped, should it be doped with accept ...
... results in the maximum possible resistivity of silicon at room temperature. (ni = 1010 cm-3, µn = 1400 cm2/V-sec and µp = 450 cm2/V-sec.) Should the silicon be doped at all or do you expect the maximum resistivity when dopants are added? If the silicon should be doped, should it be doped with accept ...
Dark energy
In physical cosmology and astronomy, dark energy is an unknown form of energy which is hypothesized to permeate all of space, tending to accelerate the expansion of the universe. Dark energy is the most accepted hypothesis to explain the observations since the 1990s indicating that the universe is expanding at an accelerating rate. Assuming that the standard model of cosmology is correct, the best current measurements indicate that dark energy contributes 68.3% of the total energy in the present-day observable universe. The mass–energy of dark matter and ordinary matter contribute 26.8% and 4.9%, respectively, and other components such as neutrinos and photons contribute a very small amount. Again on a mass–energy equivalence basis, the density of dark energy (6.91 × 10−27 kg/m3) is very low, much less than the density of ordinary matter or dark matter within galaxies. However, it comes to dominate the mass–energy of the universe because it is uniform across space.Two proposed forms for dark energy are the cosmological constant, a constant energy density filling space homogeneously, and scalar fields such as quintessence or moduli, dynamic quantities whose energy density can vary in time and space. Contributions from scalar fields that are constant in space are usually also included in the cosmological constant. The cosmological constant can be formulated to be equivalent to vacuum energy. Scalar fields that do change in space can be difficult to distinguish from a cosmological constant because the change may be extremely slow.High-precision measurements of the expansion of the universe are required to understand how the expansion rate changes over time and space. In general relativity, the evolution of the expansion rate is parameterized by the cosmological equation of state (the relationship between temperature, pressure, and combined matter, energy, and vacuum energy density for any region of space). Measuring the equation of state for dark energy is one of the biggest efforts in observational cosmology today.Adding the cosmological constant to cosmology's standard FLRW metric leads to the Lambda-CDM model, which has been referred to as the ""standard model of cosmology"" because of its precise agreement with observations. Dark energy has been used as a crucial ingredient in a recent attempt to formulate a cyclic model for the universe.