The visible parts of galaxies contribute about one-tenth of the critical density of the universe.
Indicate whether the statement is true or false
Question 2
In M82, observations indicate that there are several bright sources close to the center of the galaxy. These might be
A) supernovae.
B) accretion disks of supermassive black holes, millions of times as massive as our sun.
C) accretion disks of intermediate black holes, hundreds of times as massive as our sun.
D) accretion disks of stellar mass black holes.
E) red giants in the process of forming planetary nebulae.
Hematoma. A hematoma around the right eye caused by an injury. A hematoma is the result of bleeding
Critical thinking and the evaluation process
Much Exploration for Oil and Gas Takes Place in Remote Parts of the World
Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ...
Variations in Ocean Water Density with Depth
In ABC, A=90, b=3 cm, c=7 cm. Solve for all unknowns to the nearest tenth of a unit.