The huge, dark, almost spherical regions between the superclusters of galaxies are called ________
Fill in the blank(s) with correct word
voids
You might also like to view...
A spherical galaxy, like M87, which looks like a monster globular cluster, is type:
A) S0. B) ES. C) E0. D) ES1. E) 0V.
Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface. The edges of the two mirrors meet at a 30° angle. A light ray that enters parallel to mirror 2 reflects from mirror 1 and then from mirror 2 . The angle of reflection of that ray from mirror 2 is
a. 0°. b. 30°. c. 60°. d. 90°. e. 120°.
The energy from an AGN is produced by
a. the collision of two spiral galaxies. b. the collision of two elliptical galaxies. c. the collision of two radio jets. d. matter flowing into a supermassive black hole. e. supernovae.
Which of the following examples describes a situation where a car is experiencing a net force?
A) The car is holding constant speed around a curve. B) The car is holding constant speed down a straight hill because the driver is applying the brakes. C) The car is moving at constant speed in a straight line. D) The car is stopped on a hill.