What happens to an object if the forces acting on it are unbalanced?
a) its motion changes.
b) the net force is zero.
c) its motion does not change.
d) the object always comes to a stop.

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.