A trough is the lowest point in a wave.
Answer:
we need to know what the choices are?
Explanation:
Explanation:
If there are more reactants than products, it is a synthesis reaction. If oxygen is a part of the reactant, it is a combustion reaction. If one ion replaces another, it is a single replacement reaction. If there are two compounds in a reactant where cations switch, it is a double replacement reaction.
Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion.
The forces of gravity between two objects depend on the masses
of both objects. So if one mass increases, then the objects will be
drawn together by stronger gravitational force.
Example:
When a person eats a lot of steak and fat and carbohydrates, his
mass increases, and the bathroom scale shows that the gravitational
forces drawing him and the Earth together have increased. We say
that he has "gained weight".