Topic 6-1 Gravitational Force and Field
... distance between earth and sun is 1.5x1011 m) _________________________________________ _________________________________________ _________________________________________ _________________________________________ _________________________________________ Q2 If the distance is doubled, what happen t ...
... distance between earth and sun is 1.5x1011 m) _________________________________________ _________________________________________ _________________________________________ _________________________________________ _________________________________________ Q2 If the distance is doubled, what happen t ...
3. Galactic Dynamics handout 3 Aim: understand equilibrium of
... 3) calculate the mass of our galaxy for two assumed radii: a.) 10 kpc (roughly the distance to the sun) b.) 350 kpc (halfway out to Andromeda) Take as a typical velocity the solar value of 200 km/s. 4) Give the correct expression for the total kinetic energy if the velocities of stars ARE correlated ...
... 3) calculate the mass of our galaxy for two assumed radii: a.) 10 kpc (roughly the distance to the sun) b.) 350 kpc (halfway out to Andromeda) Take as a typical velocity the solar value of 200 km/s. 4) Give the correct expression for the total kinetic energy if the velocities of stars ARE correlated ...
Neutron Stars and Black Holes
... Waves have not yet been observed directly However, a neutron-star binary system has been observed Orbits are slowing at the rate predicted if gravity waves are carrying off the lost ...
... Waves have not yet been observed directly However, a neutron-star binary system has been observed Orbits are slowing at the rate predicted if gravity waves are carrying off the lost ...
The Eye
... Convergent waves are rays of light that converge light that is traveling parallel to their principal axis Convex lenses refract light in a towards each other Divergent waves are rays of light that diverges light that is traveling parallel to their principal axis; travels through the center of either ...
... Convergent waves are rays of light that converge light that is traveling parallel to their principal axis Convex lenses refract light in a towards each other Divergent waves are rays of light that diverges light that is traveling parallel to their principal axis; travels through the center of either ...
Light Years and Our Universe
... The universe has to have a beginning The galaxies are still moving away from each other (suggest that the universe was once much smaller) If the universe was once hot there should be proof, and scientist found cosmic radiation readings that showed this. The abundance of “light elements” such as heli ...
... The universe has to have a beginning The galaxies are still moving away from each other (suggest that the universe was once much smaller) If the universe was once hot there should be proof, and scientist found cosmic radiation readings that showed this. The abundance of “light elements” such as heli ...
Proficiency Review
... A transformer is a device in which alternating current in one coil of wire induces a current in a second coil. Which of the following properties is necessary for a transformer to work? A. When a magnetic field changes an electric current will be induced. B. Magnets are needed for an electrical curre ...
... A transformer is a device in which alternating current in one coil of wire induces a current in a second coil. Which of the following properties is necessary for a transformer to work? A. When a magnetic field changes an electric current will be induced. B. Magnets are needed for an electrical curre ...
Expanding Universe
... contained starts throughout, then if you looked in any particular direction, you line of sight would eventually fall on the surface of a star. Although the apparent size of a star in the sky becomes smaller as the distance to the star increases, the brightness of the smaller surface remains a consta ...
... contained starts throughout, then if you looked in any particular direction, you line of sight would eventually fall on the surface of a star. Although the apparent size of a star in the sky becomes smaller as the distance to the star increases, the brightness of the smaller surface remains a consta ...
Success Criteria Space
... I can differentiate between the life span of a massive, intermediate and low mass star I can describe the differences between the end of the life of a massive, intermediate and low mass star I understand how the Doppler Effect causes a red shift or blue shift ...
... I can differentiate between the life span of a massive, intermediate and low mass star I can describe the differences between the end of the life of a massive, intermediate and low mass star I understand how the Doppler Effect causes a red shift or blue shift ...
Doppler Effect - Cloudfront.net
... When the source of some wave (eg. Sound, light, etc.) is approaching you, the wave you received will be in a higher frequency (shorter wavelength) compared to the case when the source is stationary. If the source is leaving you, you will see lower frequency wave (longer wavelength). This is called t ...
... When the source of some wave (eg. Sound, light, etc.) is approaching you, the wave you received will be in a higher frequency (shorter wavelength) compared to the case when the source is stationary. If the source is leaving you, you will see lower frequency wave (longer wavelength). This is called t ...
Black holes - schoolphysics
... The escape velocity of a body obviously increases the closer to the body that you go, for example for the Earth the escape velocity at the surface of the planet is 11.3 km per second 10 000 km above the surface this will have fallen to just under 7 km per second. Clearly for a Black Hole there will ...
... The escape velocity of a body obviously increases the closer to the body that you go, for example for the Earth the escape velocity at the surface of the planet is 11.3 km per second 10 000 km above the surface this will have fallen to just under 7 km per second. Clearly for a Black Hole there will ...
R. Bender (ESO)
... • Evolution of cold dark matter ‘easy’ to model and seems understood at scales larger than galaxy size. • Evolution of baryonic component complex and not at all well understood (difficult interplay between star formation, nuclear activity, different gas phases, collaps and merging). • Stellar ages o ...
... • Evolution of cold dark matter ‘easy’ to model and seems understood at scales larger than galaxy size. • Evolution of baryonic component complex and not at all well understood (difficult interplay between star formation, nuclear activity, different gas phases, collaps and merging). • Stellar ages o ...
AN INTRODUCTION TO ASTRONOMY Dr. Uri Griv Department of Physics, Ben-Gurion University
... or in q a stellar system PN V = (1/N ) i=1 (vi − v̄)2 where PN v̄ = (1/N ) i=1 vi is the mean velocity and N is the total number of stars • A true MB distribution has a “tail” • Stars will be lost from the cluster • The escape speed ve = 2V ...
... or in q a stellar system PN V = (1/N ) i=1 (vi − v̄)2 where PN v̄ = (1/N ) i=1 vi is the mean velocity and N is the total number of stars • A true MB distribution has a “tail” • Stars will be lost from the cluster • The escape speed ve = 2V ...
NIRCam - STScI
... wavefront sensing but useful for science) Because the SW side can also be readout when using one of the grisms, jitter can be tracked directly. – Internal defocusing lenses for high precision photometry = transits (installed for wavefront sensing, only available in ...
... wavefront sensing but useful for science) Because the SW side can also be readout when using one of the grisms, jitter can be tracked directly. – Internal defocusing lenses for high precision photometry = transits (installed for wavefront sensing, only available in ...
period ____ due date
... Phrase used to describe electromagnetic radiation of all wavelengths and frequencies. This includes radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays, etc. Waves which can move through a vacuum because they are self propagating (causing their own continuation). They s ...
... Phrase used to describe electromagnetic radiation of all wavelengths and frequencies. This includes radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays, etc. Waves which can move through a vacuum because they are self propagating (causing their own continuation). They s ...
1. Which of the following correctly lists our “cosmic address” from
... 8. If the distance to galaxy A from us is the farther than the the distance to galaxy B from us, which of the following is right? (a) If the two galaxies are within our Local Group, they can move in any directions, but the speed of A must be greater than the speed of B. (b) If the two galaxies are ...
... 8. If the distance to galaxy A from us is the farther than the the distance to galaxy B from us, which of the following is right? (a) If the two galaxies are within our Local Group, they can move in any directions, but the speed of A must be greater than the speed of B. (b) If the two galaxies are ...
Laboratory: Geometrical Optics
... 42. Is it possible to create a virtual image using only a bi-convex lens? YES / NO 43. If yes, in what region should the object be placed? ...
... 42. Is it possible to create a virtual image using only a bi-convex lens? YES / NO 43. If yes, in what region should the object be placed? ...
the rest of the univ..
... The Kuiper Belt and The Oort Cloud In 1950 Jan Oort noticed that: 1.no comet has been observed with an orbit that indicates that it came from interstellar space. 2.there is a strong tendency for aphelia of long period comet orbits to lie at a distance of about 50,000 AU. 3.there is no preferential d ...
... The Kuiper Belt and The Oort Cloud In 1950 Jan Oort noticed that: 1.no comet has been observed with an orbit that indicates that it came from interstellar space. 2.there is a strong tendency for aphelia of long period comet orbits to lie at a distance of about 50,000 AU. 3.there is no preferential d ...