Its important because it is the revolutionary and important to america
Answer:
Astronomers estimate the distance of nearby objects in space by using a method called stellar parallax, or trigonometric parallax. Simply put, they measure a star's apparent movement against the background of more distant stars as Earth revolves around the sun.
Explanation:
The type of friction that acts on an object that is not moving is option A, static friction.
<h3>What is
static friction?</h3>
Static friction serves as a kind of friction that do occur between two object that are not moving which means the object are static in nature.
In this case, The type of friction that acts on an object that is not moving is static friction.
Learn more aboutstatic friction on:
brainly.com/question/13680415
#SPJ1
Answer:
Old age and hundreds of thousands of stars, only about 30 ly wide
Explanation:
A globular cluster is a collection of stars which are bound by a very strong force known as gravity (gravity is the force of attraction between two bodies). The gravity then causes globular clusters to have a spherical shape with a high number of stars closer to the center (where the gravity is strongest).
These stars are usually very old and the diameter of the clusters are usually only 30 lightyears wide because of the strong gravity.