Answer:
5 percent = normal matter
68 percent = dark energy
27 percent = dark matter
Explanation:
 
        
             
        
        
        
Answer:
simple, Volt =change in potential energy/Charge
the unit of energy is newton meter (Force*distance)
the unit of charge is coloumb
So, Volt/meter=newton* meter/coloumb*meter
=newton/coloumb (hence proved)
This unit is the potential drop per unit of length in a conductive wire with uniform resistance