In my opinion, I believe it’s A(lever)
D. if supply drops the population will because lack of resources
Motor convert most of its
electric energy into mechanical energy. <span>Electric motors
make mechanical energy through the interaction between magnetic fields. </span>
Take two magnets and attempt to push their North
poles together. There will be a repulsive force that resists this
motion. Move one North pole near the other magnet's South pole.
There will be an attractive force that pulls them together.
Answer:
Collision theory is used to predict the rates of chemical reactions, particularly for gases. It is based on the assumption that for a reaction to occur for the reacting species (atoms or molecules) must come together or collide with one another. Not all collisions, however, bring about chemical change.
If two molecules collide with sufficient activation energy, there is no guarantee that the collision will be successful. In fact, the collision theory says that not every collision is successful, even if molecules are moving with enough energy. The reason for this is because molecules also need to collide with the right orientation so that the proper atoms line up with one another, and bonds can break and re-form necessarily.
Answer:
A.)
Explanation:
Because you didn't add anything or take anything away.