Physics

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Observations of galaxies and clusters of galaxies indicate that about ___________ percent of the ... Started by haleyc112	3 Replies 108 Views	Jul 27, 2018 by helenmarkerine
Starburst galaxies a. contain a large number of very young stars, but very little evidence of gas ... Started by javeds	1 Replies 85 Views	Jul 27, 2018 by cuttiesgirl16
An elliptical galaxy could a. evolve into an irregular galaxy when it has used up all of its gas ... Started by laurencescou	1 Replies 94 Views	Jul 27, 2018 by Mollythedog
The Virgo cluster a. is the galactic cluster that contains the Milky Way. b. is the oldest known ... Started by Pineappleeh	1 Replies 163 Views	Jul 27, 2018 by leahchrapun
Supermassive black holes are believed to be located at the center of many galaxies because a. the ... Started by lunatika	3 Replies 86 Views	Jul 27, 2018 by mohan
If H equals 70 km/s/Mpc, then a galaxy with a radial velocity of 2100 km/s has a distance of ... Started by yoooooman	1 Replies 101 Views	Jul 27, 2018 by prumorgan
If a galaxy has a radial velocity of 8000 km/s and the Hubble constant is 70 km/s/Mpc, what is the ... Started by DelorasTo	1 Replies 179 Views	Jul 27, 2018 by ilianabrrr
If the absolute magnitude, M, of a supernova is 19 and a galaxy is found that contains a supernova ... Started by daltonest1984	1 Replies 98 Views	Jul 27, 2018 by mcinincha279
If Galaxy A is found to have a recessional velocity four times greater than Galaxy B, what can you ... Started by nramada	3 Replies 107 Views	Jul 27, 2018 by KKcool
Of the following, which of the following is the largest object? a. the Milky Way galaxy b. the ... Started by DelorasTo	1 Replies 38 Views	Jul 27, 2018 by vseab
What is the Hubble constant essentially a measure of? a. the number of galaxies in the universe ... Started by ec501234	1 Replies 75 Views	Jul 27, 2018 by juiceman1987
What factors are important when trying to classify a spiral galaxy? a. amount of dust and gas in ... Started by lracut11	1 Replies 46 Views	Jul 27, 2018 by Viet Thy
What is the primary factor in determining the classification for an elliptical galaxy? a. size ... Started by theo	3 Replies 143 Views	Jul 27, 2018 by todom5090
What distance method did Edwin Hubble use to determine the distance to local galaxies? a. Hubble ... Started by melly21297	1 Replies 166 Views	Jul 27, 2018 by Brenm
What of the following distance methods is used to determine the distance to the most distant ... Started by neverstopbelieb	1 Replies 90 Views	Jul 27, 2018 by billybob123
What distance method is used to determine the distance to the most distant galaxies when only a ... Started by c0205847	1 Replies 123 Views	Jul 27, 2018 by Moriaki
What type of galaxies do astronomers believe to be the most common? a. elliptical b. spiral c. ... Started by CQXA	3 Replies 109 Views	Jul 27, 2018 by abctaiwan
The letters AGN stand for a. three spectral types of stars. b. active planet. c. active star. ... Started by 809779	1 Replies 155 Views	Jul 27, 2018 by Ahernandez18
The energy from an AGN is produced by a. the collision of two spiral galaxies. b. the collision ... Started by B	1 Replies 103 Views	Jul 27, 2018 by Jsherida
All __________ galaxies are spiral galaxies that have small, luminous nuclei. a. active b. radio ... Started by notis	1 Replies 135 Views	Jul 27, 2018 by Jossy
In the double-exhaust model, the radio lobes of a radio galaxy are inflated by a. jets of excited ... Started by nummyann	3 Replies 96 Views	Jul 27, 2018 by atrochim
The hot spots in a double-lobed radio source a. appear to coincide with the location of the ... Started by RODY.ELKHALIL	1 Replies 80 Views	Jul 27, 2018 by jliusyl
When discovered in the 1960's, a(n) ___________ was found to emit large amounts of energy, but ... Started by itsmyluck	1 Replies 79 Views	Jul 27, 2018 by djofnc
The radio lobes that are on each side of some radio galaxies and jets from them produce mainly a. ... Started by rosent76	1 Replies 93 Views	Jul 27, 2018 by Cheesycrackers
The fact that many radio lobes emit more intensely from the side away from the galaxy suggests that ... Started by savannahhooper	3 Replies 108 Views	Jul 27, 2018 by DylanD1323