Answer:
2: 20HZ 3:audiable
Explanation:
i guessed and it told me i was right
Answer:B
Explanation: an atom is the smallest particle of an element that can take part in a chemical reaction.
Your body is pushing down on a chair because it is being attracted by gravity, the reason that your body is not moving down because there is a normal force acting on your body; together the net force of weight (m*g) and normal force is equal to zero