Physics

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According to Kepler results in mid-2013, what fraction of stars host an Earth-size planet? A) ... Started by Frost2351	1 Replies 59 Views	Jul 27, 2018 by Madisongo23
Which part of the electromagnetic spectrum generally gives us our best views of stars forming in ... Started by gonzo233	1 Replies 84 Views	Jul 27, 2018 by mathjasmine
According to the nebular theory, where should jovian planets form? A) in the cold outer regions ... Started by wenmo	1 Replies 68 Views	Jul 27, 2018 by krakiolit
How many arcseconds are in one degree? A) 360 B) 3,600 C) 10,000 D) 100 E) ... Started by rl	3 Replies 42 Views	Jul 27, 2018 by SeanoH09
Which of the following phenomena is not commonly associated with the star formation process? A) ... Started by cabate	1 Replies 100 Views	Jul 27, 2018 by bob
How do we determine the conditions that existed in the very early universe? A) We can only guess ... Started by FButt	1 Replies 76 Views	Jul 27, 2018 by kilada
What mechanism explains the presence of hot Jupiters around many other stars? A) evaporation of ... Started by Sufayan.ah	1 Replies 36 Views	Jul 27, 2018 by Kdiggy
You observe a star very similar to our own Sun in size and mass. This star moves very slightly back ... Started by P68T	3 Replies 99 Views	Jul 27, 2018 by 6ana001
What mechanism likely accounts for whether a large icy planetesimal becomes a water world or a gas ... Started by tth	1 Replies 80 Views	Jul 27, 2018 by kjohnson
What is the approximate range of masses that newborn main sequence stars can have? A) 0.1 to ... Started by leo leo	1 Replies 96 Views	Jul 27, 2018 by ghepp
The vast majority of stars in a newly formed star cluster are ________. A) red giants B) very ... Started by lracut11	1 Replies 87 Views	Jul 27, 2018 by pikon
What is the runaway greenhouse effect? What will be an ideal ... Started by crobinson2013	3 Replies 145 Views	Jul 27, 2018 by ebe
Compared to the size of its nucleus, the size of an atom is about A) a hundred times greater. B) ... Started by haleyc112	1 Replies 206 Views	Jul 27, 2018 by Koolkid240
According to the Big Bang theory, why do we live in a universe that is made of almost entirely of ... Started by big1devin	1 Replies 128 Views	Jul 27, 2018 by IRincones
Orion is visible on winter evenings but not summer evenings because of A) the location of Earth ... Started by elizabeth18	1 Replies 105 Views	Jul 27, 2018 by voltaire123
Which of the following statements about brown dwarfs is not true? A) Brown dwarfs are supported ... Started by kamilo84	3 Replies 136 Views	Jul 27, 2018 by fur
Pluto's orbit has a lower inclination to the ecliptic than any planet. Indicate whether the ... Started by Pineapplelove6	1 Replies 58 Views	Jul 27, 2018 by Kjones0604
Two of the Galilean moons of Jupiter are the size of Mercury, and the two others are about as big as ... Started by torybrooks	1 Replies 76 Views	Jul 27, 2018 by iceage
Two stars with about the same mass are found to have transiting planets with similar semi-major ... Started by ETearle	1 Replies 67 Views	Jul 27, 2018 by juliaf
The south celestial pole is located at a declination of -90 degrees. Indicate whether the ... Started by Starlight	3 Replies 73 Views	Jul 27, 2018 by wergv
If the Earth rotated much more slowly, which of the following would be a consequence of that? A) ... Started by V@ndy87	1 Replies 59 Views	Jul 27, 2018 by mfedorka
All the planet's orbits are evenly spaced. Indicate whether the statement is true or ... Started by michelleunicorn	1 Replies 84 Views	Jul 27, 2018 by gasdhashg
Besides Mars, exobiologists find Europa also a good candidate for life. Indicate whether the ... Started by LCritchfi	1 Replies 90 Views	Jul 27, 2018 by ngr69
The surface of Io looks most like the pack ice of the Arctic Ocean of Earth. Indicate whether the ... Started by melly21297	3 Replies 93 Views	Jul 27, 2018 by Hikerman221
Why is Mars so much colder than the Earth? A) because the albedo of Mars is higher than the Earth ... Started by 809779	1 Replies 93 Views	Jul 27, 2018 by brittiany.barnes