Author Question: When a star's inward gravity and outward pressure are balanced, the star is said to be A) in ... (Read 59 times)

renzo156 · **on:** Jul 27, 2018

When a star's inward gravity and outward pressure are balanced, the star is said to be

A) in hydrostatic equilibrium.
B) in gravitational collapse.
C) a stage 2 protostar.
D) in thermal expansion.
E) in rotational equilibrium.

Question 2

Radio galaxies emit only radio waves, and are not otherwise observable.

Indicate whether the statement is true or false