Physics

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Why is a CCD image much faster to obtain than a photograph? What will be an ideal ... Started by crobinson2013	1 Replies 85 Views	Jul 27, 2018 by abctaiwan
Planets are expected to be found orbiting most Population II stars. Indicate whether the ... Started by dollx	3 Replies 88 Views	Jul 27, 2018 by Sassygurl126
Compared to the orbits of Venus and Earth, the orbits of both Mercury and Mars have much ________ ... Started by cartlidgeashley	1 Replies 100 Views	Jul 27, 2018 by Dunkey
Based on the number of galaxies visible in the Hubble Deep Field (Figure 16.1 in your textbook), the ... Started by jrubin	1 Replies 81 Views	Jul 27, 2018 by bitingbit
In a closed universe, if you could send out a powerful enough light, it would eventually return from ... Started by bio_gurl	1 Replies 57 Views	Jul 27, 2018 by heyhey123
Euclidean geometry is useful for most common problems, but the geometry of space requires general ... Started by audie	3 Replies 149 Views	Jul 27, 2018 by Swizqar
To find the distance of nearby stars, we use their parallaxes obtained over ________-month ... Started by craiczarry	1 Replies 113 Views	Jul 27, 2018 by miss.ashley
A standard candle is ________. A) a light source of known luminosity B) a 7-cm-long wax candle ... Started by Pineapplelove6	1 Replies 184 Views	Jul 27, 2018 by josephsuarez
What is main-sequence fitting? A) a way of forcing stars to fit into a standard main sequence, ... Started by joe	1 Replies 108 Views	Jul 27, 2018 by Beatricemm
Because of their low surface gravities, the Moon and Mercury lack ________. Fill in the blank(s) ... Started by LCritchfi	3 Replies 96 Views	Jul 27, 2018 by dominiqueenicolee
Why is the Hubble Space Telescope equipped with more infrared and ultraviolet detectors than are ... Started by Cooldude101	1 Replies 113 Views	Jul 27, 2018 by deja
Like our solar system, the whole Milky Way is about five billion years old. Indicate whether the ... Started by 809779	1 Replies 109 Views	Jul 27, 2018 by jojobee318
The ionized helium lines show up only in class ________ stars. A) K B) B C) O D) M E) ... Started by RODY.ELKHALIL	1 Replies 74 Views	Jul 27, 2018 by Swizqar
What two observable properties of a Cepheid variable are directly related to one another? A) its ... Started by oliviahorn72	3 Replies 80 Views	Jul 27, 2018 by livaneabi
Why are the designs of the Hubble and Chandra Space Telescopes different? What will be an ideal ... Started by jeatrice	1 Replies 34 Views	Jul 27, 2018 by cdmart10
Like dark matter, dark energy will also retard the expansion of the universe. Indicate whether ... Started by Pea0909berry	1 Replies 117 Views	Jul 27, 2018 by Melissahxx
What does Hubble's law tell us? A) The longer the period of a Cepheid variable, the greater its ... Started by imowrer	1 Replies 69 Views	Jul 27, 2018 by wtf444
Most of the dark matter in the Galaxy lies in the disk and galactic center. Indicate whether the ... Started by roselinechinyere27m	3 Replies 77 Views	Jul 27, 2018 by dawsa925
Perhaps as much as 95 of the matter in superclusters is dark matter. Indicate whether the ... Started by Mimi	1 Replies 66 Views	Jul 27, 2018 by Kingjoffery
Smooth rolling plains, modest highlands and lowlands, and no water describes the surface of ... Started by ts19998	1 Replies 66 Views	Jul 27, 2018 by harveenkau8139
If its parallax is 1, then the distance to the star is ________ light-years. Fill in the blank(s) ... Started by luvbio	1 Replies 82 Views	Jul 27, 2018 by bfulkerson77
When we use an analogy that represents the expanding universe with the surface of an expanding ... Started by magmichele12	3 Replies 126 Views	Jul 27, 2018 by Meganchabluk
From the best current data, we infer the universe will expand forever. Indicate whether the ... Started by nummyann	1 Replies 77 Views	Jul 27, 2018 by ambernicolefink
Dark matter has not been observed at any electromagnetic wavelength. Indicate whether the ... Started by nautica902	1 Replies 48 Views	Jul 27, 2018 by itsakadoozi
In age, the surface of Venus is much ________ than even the lunar mare. Fill in the blank(s) with ... Started by karateprodigy	1 Replies 76 Views	Jul 27, 2018 by tofugiraffe