An atom is the building block of all matter. Electrons, protons and neutrons make up the atom. protons and neutrons make up the nucleus of the atom, and the electrons are on the electron shell.
        
                    
             
        
        
        
The AU ... Astronomical Unit ... used to be defined as the average distance between the Sun and Earth during the year.
Now it's defined as 149,597,870,700 meters exactly.
 
        
             
        
        
        
The outside magnetic field of a solenoid is similar to that of a bar magnet even though the inside field is strong and uniform.
        
                    
             
        
        
        
Answer:
The principle of superposition states that when a number of charges are interacting, the net electrostatic force a given charge is the vector sum of the forces exerted on it due to all other charges. The force between two charges is not affected by the presence of other charges.
 
        
             
        
        
        
The Answer is 
D. reflected