It would be "Researchers found environmental safe replacements for CFC's"
Answer:
no force exists by itself because every action has an equal and opposite reaction
Answer:
no change in speed, therefore the body cannot be accelerated. a=0
Explanation:
When a person is accelerating his speed must change, if the speed is in the same direction as the acceleration the speed increases and if the acceleration is in the opposite direction to the speed it decreases.
In this case there is no change in speed, therefore the body cannot be accelerated.
Answer:
A. gas only
Explanation:
In a gas, the molecules are in continuous, random, straight-line motion.
The molecules are independent of one another i.e The forces of attraction (cohesive forces) and repulsion between the molecules are small and negligible,As such they possess greater kinetic energy which allows them to break the force of attraction between them
In liquid, the molecules have a less random pattern of motion and they can only slide past one another.
In solid, the motion are restricted to a small place as the molecules are not free to move about but merely vibrate about their lattice points.
For water to boil, you need a pot of water and a stove. You put the pot on the stove until the water bubbles, this is called boiling hope this helps lol (:
