Explanation:
1. Movement of water, food and mineral salts in plants
2. Absorption of water by towels when wiping our bodies 
3. It is used to absorb ink using a blotting paper or tissue
 
        
             
        
        
        
Answer:

Explanation:
The momentum change is defined as:

Taking the downward motion as negative and the upward motion as positive, we have:

Replacing (2) and (3) in (1):

 
        
             
        
        
        
Answer:
 heterogeneous mixture has components that are not evenly distributed. This means that you can easily distinguish between the different components. 
 
        
             
        
        
        
Answer:

Explanation:
Given that
Number of particle =N
Equilibrium temperature= T
Side of cube = L
Gravitational acceleration =g 
The kinetic energy of an atom  given as

Where
Equilibrium temperature= T
Boltzmann constant =K
         K =1.380649×10−23 J/K