Author Question: A supermassive black hole in the center of a galaxy typically represents ____ of the galaxy's total ... (Read 123 times)

shenderson6 · **on:** Jul 27, 2018

A supermassive black hole in the center of a galaxy typically represents ____ of the galaxy's total mass.

a. a tiny fraction of a percent
b. about a percent
c. 1-5
d. 10
e. 50

Question 2

A spectrograph spreads out light according to ____ to form a spectrum.

a. wavelength
b. frequency
c. interference
d. aberration
e. grating