Answer:
Friction: When two surfaces slide against each other / make contact with each other
Force: A push or pull exerted on an object
During cellular respiration, our bodies take glucose molecules and breaks the bonds holding the molecules together. When these bonds are broken, the chemical energy stored in these bonds are released and used to make ATP molecules, a form of useable energy for us.
B 20 m/s
It should go to 100 that fast nor 40
Answer:
a periscope use total internal reflection to allow us to see things
the reflection happens at 45°
Explanation:
A LEVER is one type of simple machine.
