Physics

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Why is the Hyades Cluster important for building up a catalog of the true luminosities of ... Started by yoooooman	1 Replies 38 Views	Jul 27, 2018 by meganlapinski
Collisions between galaxies are thought to A) be commonplace. B) have stopped about 5 billion ... Started by cdr_15	3 Replies 75 Views	Jul 27, 2018 by scikid
Without the strong nuclear force, the only element in the universe would be ________. Explain. ... Started by a0266361136	1 Replies 70 Views	Jul 27, 2018 by gstein359
Chromatic aberration affects reflector telescopes. Indicate whether the statement is true or ... Started by justinmsk	1 Replies 144 Views	Jul 27, 2018 by lkanara2
Why is the Moon heavily cratered but Earth is not? What will be an ideal ... Started by s.tung	1 Replies 65 Views	Jul 27, 2018 by Tabitha_2016
While white dwarfs have a density a million times that of normal matter, neutron stars are a ... Started by Mr3Hunna	3 Replies 124 Views	Jul 27, 2018 by Heffejeff
What features are conspicuously absent from the far side of the Moon? Why? What will be an ideal ... Started by brutforce	1 Replies 77 Views	Jul 27, 2018 by whitcassie
The nearest star system to our Sun, Alpha Centauri, is still over a parsec distant. Indicate ... Started by jace	1 Replies 89 Views	Jul 27, 2018 by meganlapinski
A neutron star detectable by its rapid rotation and strong magnetic field is a(n) ________. Fill ... Started by nramada	1 Replies 71 Views	Jul 27, 2018 by cdmart10
The fast rotation of newly formed neutrons stars is due to conservation of ________. Fill in the ... Started by asmith134	3 Replies 95 Views	Jul 27, 2018 by memslove
Which of these is the next evolutionary track for the Large Magellanic Cloud? A) It will be free ... Started by newyorker26	1 Replies 94 Views	Jul 27, 2018 by ciecieme
If a star has a parallax of 0.25, then its distance is about 13 light-years. Indicate whether the ... Started by formula1	1 Replies 208 Views	Jul 27, 2018 by k.lashomb
Relate our magnetic field to the aurorae. What will be an ideal ... Started by azncindy619	1 Replies 35 Views	Jul 27, 2018 by abctaiwan
A supernova remnant, such as the Crab nebula, is heated by the ________. Fill in the blank(s) ... Started by leilurhhh	3 Replies 106 Views	Jul 27, 2018 by ultraflyy23
Which of the following is a consequence of Hubble's Law? A) The more distant a galaxy is from us, ... Started by Deast7027	1 Replies 64 Views	Jul 27, 2018 by joshraies
Which of the following is not a good reason why white-dwarf supernovae are good standard candles for ... Started by tiara099	1 Replies 64 Views	Jul 27, 2018 by wuly
The Cassegrain reflector needs a primary concave main mirror and a smaller, convex secondary mirror ... Started by sarasara	1 Replies 74 Views	Jul 27, 2018 by poopface
Combining a star's proper motion and its distance allows us to determine its transverse velocity. ... Started by Starlight	3 Replies 64 Views	Jul 27, 2018 by scikid
Pulsars can range in mass from ________ to ________ solar masses. Fill in the blank(s) with ... Started by jho37	1 Replies 100 Views	Jul 27, 2018 by ju
What makes white-dwarf supernovae very good standard candles for distance measurements? A) They ... Started by Cooldude101	1 Replies 97 Views	Jul 27, 2018 by Hdosisshsbshs
That pulsars are losing rotational energy from magnetic drag is shown as they ________. Fill in ... Started by piesebel	1 Replies 50 Views	Jul 27, 2018 by k.lashomb
What is true of galaxies at the larger redshifts compared to ones nearby? A) They are mostly ... Started by magmichele12	3 Replies 114 Views	Jul 27, 2018 by 31809pancho
The density of Mars is very similar to that of the other terrestrial planets. Indicate whether ... Started by melina_rosy	1 Replies 69 Views	Jul 27, 2018 by leahchrapun
The height of the quasar epoch was A) less than 1 billion years ago. B) when there was still ... Started by kodithompson	1 Replies 39 Views	Jul 27, 2018 by taylorsonier
In its most energetic phase, a quasar can probably only last A) a few days. B) a few years. C) ... Started by misspop	1 Replies 42 Views	Jul 27, 2018 by Sarahjh