The colors that you see on the CD are created by white light reflecting from ridges in the metal. When light reflects off or passes through something with many small ridges or scratches, you often get rainbow colors and interesting patterns. They are called interference patterns.
        
             
        
        
        
Answer:
Explanation:
You didn't last any of the variables. You have to list the variables to tell which are which.
 
        
                    
             
        
        
        
If current is passed through two parallel conductors in the same direction and the conductors are placed near each other, they will attract each other.
<h3>What is electric current?</h3>
Electric current can be defined as the flow of electrons.
Since electrons are easily removed from atom and are very mobile, the flow of electrons constitute an electric current.
Materials which allow electric current to flow through them are known as conductors. Examples of conductors are metals, and electrolytes.
On the other hand, materials which do not allow electric current to pass through them are known as insulators. Examples of insulators are wood and rubber.
The flow of current is known as electricity.
Parallel conductors with current flowing through them in the same direction are attracted to each other as a result of a magnetic field produced by the flow of current.
In conclusion, conductors allow electric current to pass through and the flow of current through a conductor produces a magnetic field.
Learn more about parallel conductors at: brainly.com/question/17148082
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It’s gonna be Oxygen ....
        
             
        
        
        
Answer:
option (D) is correct. 
Explanation:
According to the work energy theorem, the work done by all forces is equal to the change in kinetic energy of the body. 
 the kinetic energy of a body is directly proportional to the square of the speed of the body. 
As the kinetic energy change, the speed of the body also change. 
Option (D) is correct.