Physics

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The COBE satellite was designed to image the microwave cosmological background radiation and thus ... Started by leo leo	1 Replies 77 Views	Jul 27, 2018 by chloejackso
Which statement about Population II is false? A) The globular clusters are their most obvious ... Started by Shelles	1 Replies 68 Views	Jul 27, 2018 by dpost18
How is the Mars Rover mission different from the Global Surveyor mapping mission? What will be an ... Started by leo leo	3 Replies 165 Views	Jul 27, 2018 by zogaridan
The orbits of Population II stars have been compared to A) satellites around planets. B) the ... Started by james	1 Replies 99 Views	Jul 27, 2018 by batool
Suppose that Hubble's constant were 20 kilometers per second per million light-years. How fast would ... Started by Themember4	1 Replies 177 Views	Jul 27, 2018 by Galvarado142
Why are white dwarf supernovae more useful than massive star supernovae for measuring cosmic ... Started by yoooooman	1 Replies 116 Views	Jul 27, 2018 by katara
COBE found the cosmic microwave background to be absolutely uniform everywhere. Indicate whether ... Started by dbose	3 Replies 87 Views	Jul 27, 2018 by Sierray
Does Hubble's law work well for galaxies in the Local Group? Why or why not? A) Yes, it works so ... Started by jeatrice	1 Replies 71 Views	Jul 27, 2018 by dmurph1496
From the Sun, the distance to the Galactic Center is about A) 100,000 light-years. B) 8 kpc. C) ... Started by skymedlock	1 Replies 117 Views	Jul 27, 2018 by zoeyesther
If a binary is detected by periodic shifts in its spectral lines, it is a(n) ________ binary. ... Started by oliviahorn72	1 Replies 426 Views	Jul 27, 2018 by ecox1012
The concept that the direction of observation does NOT matter overall is A) universality. B) ... Started by 809779	3 Replies 85 Views	Jul 27, 2018 by josephsuarez
A star system where we observe the magnitude to increase and decrease is a(n) ________. Fill in ... Started by mia	1 Replies 38 Views	Jul 27, 2018 by LegendaryAnswers
What is the significance of large percentage of oxygen in Earth's atmosphere? What will be an ... Started by skymedlock	1 Replies 72 Views	Jul 27, 2018 by kristenb95
What is true about the stellar populations in the Galaxy? A) Most open clusters are in the halo. ... Started by chandani	1 Replies 81 Views	Jul 27, 2018 by aidanmbrowne
In general, the more massive the star, the ________ its lifetime. Fill in the blank(s) with ... Started by stock	3 Replies 90 Views	Jul 27, 2018 by strudel15
If Euclid is right, then o is A) zero. B) 0.3. C) 1.0. D) 2.0. E) ... Started by Chloeellawright	1 Replies 49 Views	Jul 27, 2018 by ngr69
What does cosmological redshift do to light? A) stretches its wavelength B) makes it slow down ... Started by jace	1 Replies 75 Views	Jul 27, 2018 by fwbard
While surface conditions differ greatly, name three ways that Venus and Earth are indeed sister ... Started by pragya sharda	1 Replies 47 Views	Jul 27, 2018 by frogdreck123456
When are Mercury and Venus easiest to observe from Earth? Why? How much of then can we see at that ... Started by mwit1967	3 Replies 80 Views	Jul 27, 2018 by Benayers
We can study how galaxies evolve because ________. A) galaxies are transparent to visible light ... Started by stock	1 Replies 89 Views	Jul 27, 2018 by AISCAMPING
How and why would the noon Sun appear different to an observer on Mercury compared to one on Earth? ... Started by dakota nelson	1 Replies 42 Views	Jul 27, 2018 by Anna
In our location in the Milky Way, the galactic disk is only about ________ ly thick. A) 10 B) 100 ... Started by Frost2351	1 Replies 71 Views	Jul 27, 2018 by jaymee143
On rare occasions, Mercury and Venus can transit the Sun, crossing directly between us and our Sun. ... Started by wrbasek0	3 Replies 68 Views	Jul 27, 2018 by todom5090
Why must both parallax and proper motion be known to give transverse velocity? What will be an ... Started by chads108	1 Replies 60 Views	Jul 27, 2018 by Jordin Calloway
If the accepted value of H were to double, A) the critical density would be halved. B) the age ... Started by RODY.ELKHALIL	1 Replies 36 Views	Jul 27, 2018 by billybob123