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bundle of ASTR 102 exams| Questions with 100% Solutions| A Rated
A bundle of ASTR 102 exams| Questions with 100% Solutions| A Rated
[Show more]A bundle of ASTR 102 exams| Questions with 100% Solutions| A Rated
[Show more]globular clusters - older stars; all of the stars formed at the same time, but evolve differently 
depending on their mass 
How can globular clusters help find distances? - they contain standard candles like Cepheid 
variables 
How far away is the center of the Milky Way? - about 27,000 light years ...
Preview 2 out of 5 pages
Add to cartglobular clusters - older stars; all of the stars formed at the same time, but evolve differently 
depending on their mass 
How can globular clusters help find distances? - they contain standard candles like Cepheid 
variables 
How far away is the center of the Milky Way? - about 27,000 light years ...
Human technology seems on the verge of providing something on earth that the stars use all the time: 
thermonuclear reactions. This would give us a virtually inexhaustible supply of energy, but we face one 
particularly difficult problem namely: - we need to contain the hot hydrogen somehow. Since i...
Preview 2 out of 10 pages
Add to cartHuman technology seems on the verge of providing something on earth that the stars use all the time: 
thermonuclear reactions. This would give us a virtually inexhaustible supply of energy, but we face one 
particularly difficult problem namely: - we need to contain the hot hydrogen somehow. Since i...
order of red giant's life - Red Giant → Planetary Nebula → White Dwarf → Black Dwarf 
or 
Red Giant → Type II Supernova → Neutron Star 
or 
Red Giant → Type II Supernova → Black Hol 
The eventual fate of our Sun is to - become a steadily cooling white dwarf.
Preview 2 out of 10 pages
Add to cartorder of red giant's life - Red Giant → Planetary Nebula → White Dwarf → Black Dwarf 
or 
Red Giant → Type II Supernova → Neutron Star 
or 
Red Giant → Type II Supernova → Black Hol 
The eventual fate of our Sun is to - become a steadily cooling white dwarf.
Quiz Not good place to build Observatory? - Australia (because of fire disaster) 
Best Location for an Observatory - 1. Big Island of Hawaii 
2. Andes Mtn Chile 
3. San Diego 
Dots - Stars in our galaxies 
blobs - Typically galaxies, 10% could be dead stars 
Light - Acts as 
1. Weight 
2. A Particle
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Add to cartQuiz Not good place to build Observatory? - Australia (because of fire disaster) 
Best Location for an Observatory - 1. Big Island of Hawaii 
2. Andes Mtn Chile 
3. San Diego 
Dots - Stars in our galaxies 
blobs - Typically galaxies, 10% could be dead stars 
Light - Acts as 
1. Weight 
2. A Particle
Which of the following statements about light focusing is not true? 
A) In a healthy eye, light is focused on the retina. 
B) Film should be placed at the focal plane in a camera. 
C) If you try to look at an image that is not formed at the focal plane, it will be blurry. 
D) The focal plane of a re...
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Add to cartWhich of the following statements about light focusing is not true? 
A) In a healthy eye, light is focused on the retina. 
B) Film should be placed at the focal plane in a camera. 
C) If you try to look at an image that is not formed at the focal plane, it will be blurry. 
D) The focal plane of a re...
Consider a spectroscopic binary star system in which the spectra of both stars are observed. If Star A is 
more massive than Star B, which star has the greater orbital velocity? 
a) Star A 
b) Star B 
c) They both have the same velocity d) The star that is closest to the center of mass 
e) It depend...
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Add to cartConsider a spectroscopic binary star system in which the spectra of both stars are observed. If Star A is 
more massive than Star B, which star has the greater orbital velocity? 
a) Star A 
b) Star B 
c) They both have the same velocity d) The star that is closest to the center of mass 
e) It depend...
What are the Milky Way Galaxy's spiral arms? - The spiral arms are places where stars are formed 
from clouds of gas and dust 
Where are you in the Universe? If you had to give directions to your location in the Universe, what 
directions would you give? - We are the third planet away from the Sun....
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Add to cartWhat are the Milky Way Galaxy's spiral arms? - The spiral arms are places where stars are formed 
from clouds of gas and dust 
Where are you in the Universe? If you had to give directions to your location in the Universe, what 
directions would you give? - We are the third planet away from the Sun....
Rank the following from earliest to latest: protostars, dark globule, star cluster, supernova - Dark 
globule, protostars, supernova, star cluster 
Which type of light will be most affected by interstellar extinction? - Ultraviolet 
Globular clusters formed _______________ the gas from which our gal...
Preview 2 out of 8 pages
Add to cartRank the following from earliest to latest: protostars, dark globule, star cluster, supernova - Dark 
globule, protostars, supernova, star cluster 
Which type of light will be most affected by interstellar extinction? - Ultraviolet 
Globular clusters formed _______________ the gas from which our gal...
D) the same no matter how or where you measure the object's weight. - The mass of an object is 
A) the same as the weight of the object. 
B) larger than the weight of the object. 
C) unrelated to the weight of the object. 
D) the same no matter how or where you measure the object's weight. 
A) hal...
Preview 2 out of 14 pages
Add to cartD) the same no matter how or where you measure the object's weight. - The mass of an object is 
A) the same as the weight of the object. 
B) larger than the weight of the object. 
C) unrelated to the weight of the object. 
D) the same no matter how or where you measure the object's weight. 
A) hal...
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