Physics

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Order these objects by size (radius) from smallest to largest: A) 3 solar mass black hole, 3 ... Started by mcmcdaniel	1 Replies 98 Views	Jul 27, 2018 by fatboyy09
A star is on the horizontal branch of the H-R diagram. Which statement is true? A) It is burning ... Started by ec501234	1 Replies 41 Views	Jul 27, 2018 by jojobee318
Suppose you watch a leaf bobbing up and down as ripples pass it by in a pond. You notice that it ... Started by jilianpiloj	3 Replies 40 Views	Jul 27, 2018 by djpooyouma
When we speak of the large-scale structure of the universe, we mean ________. A) the structure of ... Started by luvbio	1 Replies 79 Views	Jul 27, 2018 by Joc
What kind of observations can astronomers use to study Io's volcanoes? A) spectroscopy to ... Started by Starlight	1 Replies 66 Views	Jul 27, 2018 by shayla
The critical density of the universe is the ________. A) density of water B) average density the ... Started by RYAN BANYAN	1 Replies 196 Views	Jul 27, 2018 by jonathanballen97
Describe how Eratosthenes measured the circumference of our planet. What will be an ideal ... Started by Shelles	3 Replies 61 Views	Jul 27, 2018 by kswal303
The key ingredient in planetary formation in the solar nebula is ________. Fill in the blank(s) ... Started by meagbuch	1 Replies 65 Views	Jul 27, 2018 by yeungji
Which of the following best describes the fundamental difference between two different chemical ... Started by ahriuashd	1 Replies 47 Views	Jul 27, 2018 by cici
Which of the following best explains why nuclear fusion requires bringing nuclei extremely close ... Started by cherise1989	1 Replies 69 Views	Jul 27, 2018 by brbarasa
Most of the planets found orbiting other stars are similar to Jupiter, but ________ in temperature. ... Started by plus1	3 Replies 96 Views	Jul 27, 2018 by bhavsar
The Saturnian moons of most interest to exobiologists are A) Rhea and Iapetus. B) Phoebe and ... Started by chandani	1 Replies 77 Views	Jul 27, 2018 by briseldagonzales
We get a new and full moon every month. Why don't we get two eclipses every month? What will be ... Started by nmorano1	1 Replies 51 Views	Jul 27, 2018 by yasmin
The large Jovian satellites have sizes comparable to Mercury. Why do they have an icy composition ... Started by penza	1 Replies 98 Views	Jul 27, 2018 by adammoses97
Consider an atom of carbon in which the nucleus contains 6 protons and 7 neutrons. What is its ... Started by ashley	3 Replies 235 Views	Jul 27, 2018 by Jsherida
Can a star become a red giant more than once? A) yes, before and after the helium flash B) no, ... Started by jrubin	1 Replies 91 Views	Jul 27, 2018 by gasdhashg
A solar-mass star will evolve off the main sequence when A) it loses all its neutrinos, so fusion ... Started by laurencescou	1 Replies 86 Views	Jul 27, 2018 by macmac
An angle of 1 arcsecond is ________. A) about the width of a finger held at arm's length B) ... Started by RODY.ELKHALIL	1 Replies 274 Views	Jul 27, 2018 by Jossy
A white dwarf supernova leaves behind A) a newborn star. B) a white dwarf. C) nothing. D) a ... Started by javeds	3 Replies 391 Views	Jul 27, 2018 by debra928
Centaurus A, with two large radio lobes, is an active galaxy. Indicate whether the statement is ... Started by big1devin	1 Replies 70 Views	Jul 27, 2018 by matt95
A white dwarf has the mass of the Sun and the volume of A) Jupiter. B) Earth. C) the Moon. D) ... Started by tfester	1 Replies 81 Views	Jul 27, 2018 by miss_1456@hotmail.com
The ________ spacecraft, launched in 2009, has already found hundreds of exoplanet candidates. ... Started by Tazate	1 Replies 65 Views	Jul 27, 2018 by huda
As we go outward from Io to Ganymede, the density of the moons ________. Fill in the blank(s) ... Started by jman1234	3 Replies 84 Views	Jul 27, 2018 by duke02
A typical white dwarf is ________. A) as large in diameter as the Sun but only about as massive ... Started by tnt_battle	1 Replies 67 Views	Jul 27, 2018 by deja
Visible light from a distant star can be spread into a spectrum by using a glass prism or ________. ... Started by berenicecastro	1 Replies 93 Views	Jul 27, 2018 by Sassygurl126