|
Title: Many galaxies with erupting black holes are found ____. Post by: Unique12312 on Mar 19, 2018 Many galaxies with erupting black holes are found ____.
a. in poor clusters with little intergalactic gas b. isolated in space c. in one of a pair of orbiting galaxies d. very close to the Milky Way galaxy e. in the Local Group Question 2 A continuous spectrum is produced by ____. a. atoms that become ionized b. electrons that transfer from a high energy level to a low energy level c. electrons that transfer from a low energy level to a high energy level d. the intensity of agitation of atoms in a hot gas e. the motion of an object toward or away from the observer Question 3 Supermassive black holes erupt in ____. a. any type of galaxy, and at random times b. elliptical galaxies only, when the last of their gas and dust is consumed c. galaxies that have been part of a collision or merger d. spiral galaxies only, during a burst of star formation e. irregular galaxies Question 4 Absorption lines are produced by ____. a. atoms that become ionized b. electrons that transfer from a high energy level to a low energy level c. electrons that transfer from a low energy level to a high energy level d. the intensity of agitation of atoms in a hot gas e. the motion of an object toward or away from the observer Question 5 A supermassive black hole erupts when ____. a. it collides with a neutron star b. magnetic fields form tubes to channel the jets c. the accretion disk tilts to a new angle d. a sudden flood of matter flows inward producingan accretion disk e. starburst events irradiate the accretion disk with new energy Question 6 Emission lines are produced by ____. a. atoms that become ionized b. electrons that transfer from a high energy level to a low energy level c. electrons that transfer from a low energy level to a high energy level d. the intensity of agitation of atoms in a hot gas e. the motion of an object toward or away from the observer Title: Many galaxies with erupting black holes are found ____. Post by: letsdothis545 on Mar 19, 2018 c d c c d b Title: Many galaxies with erupting black holes are found ____. Post by: Unique12312 on Mar 19, 2018 Brilliant
|