Systems tend to change until they reach equilibrium. based on this fact, what will happen when cold air and warm are added to the same container?
a.
the warm air will get cooler and the the cool air will get warmer.
b.
only the cold air will change temperature.
c.
the warm and cold air will stay apart from each other.
d.
the warm and cold air will both get cooler.

The answer is; A

When the two air masses are mixed, the molecules of the warm air have higher kinetic energy than those of the cool air. Therefore, the molecules of the warm air bombard those of the cool air and transfer some of their kinetic energy. The warm air will get cooler while the cool air will get warmer until equilibrium is reached.  

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.