Double-lobed radio galaxies are____. a. spiral galaxies with ...

[bobbie]

Double-lobed radio galaxies are____.
 
  a. spiral galaxies with unusually luminous nuclei
 b. elliptical galaxies with very broad emission lines
 c. explained by the double-exhaust model
 d. extremely luminous objects with high redshifts
 e. glowing green gases due to excitation from energy from an active core

Question 2

An object that acts as a blackbody emits photons because ____.
 
  a. thermal energy excites electrons to the ground state
 b. electrons in the atoms of the object jump to lower energy levels
 c. electrons in the atoms of the object jump to higher energy levels
 d. atoms in the object collide, changing the motion of charged particles
  e. atoms in the object have absorbed photons from an external source

[efwsefaw]

Answer to Question 1

c

Answer to Question 2

d

[bobbie]

Thanks for the timely response, appreciate it

[nguyenhoanhat]

Excellent