Answer:

Explanation:
From conservation of energy states that

 
        
             
        
        
        
Answer:
the red at the bottom should not count, but the red at the top is the least dense because it floats upon the other liquids
Explanation:
hope this helps
 
        
             
        
        
        
Answer:
-322.64 J 
Explanation:
75 N  * cos 125     *    7.5   =  -322.64 J 
 
        
             
        
        
        
Explanation:
An Example of push as a force would be to push on a swing. The force moves the swing in a particular direction and the harder that you push the further the swing will go.
An example of pull as a force would be opening a door. ...
An example of pressure as a force is when you push down on a pile of grapes. is this what you mean
 
        
             
        
        
        
Answer:
laser pointer does not make use of total internal reflection