9.8m per seccond is the speed of gravity if you drop something like a ball from a tower
Answer:
Light does not need a medium to travel travel through, but since waves must have a medium to vibrate, sound is not created where no air is present.
Explanation:
That would be an asteroid
Answer:
It is neither false nor true. When they collide some of one of the objects goes to the other object.
Explanation:
