When the forces acting on a body are balanced, their effect
\on the body's motion is the same as if no forces at all are
acting on it, and its velocity can't change. It continues moving
in a straight line at constant speed (which may be zero).
I believe it is true . Somebody correct me if I’m wrong!
A light-year is a unit of distance.
The definition of a light-year is the distance light travels in one year.
Answer:
Electrostatics is a branch of physics that studies electric charges at rest. Since classical physics, it has been known that some materials, such as amber, attract lightweight particles after rubbing. The Greek word for amber, or electron, was thus the source of the word 'electricity'.
A centimeter cannot measure mass because mass is measured by grams.
Answer: Centimeter
