Answer:
kinetic energy than the potential energy it carries
Explanation:
 
        
             
        
        
        
Speed and velocity is a scalar and vector quantity of a similar parameter, respectively. They both refer to how fast an object moves. However, the speed only has to do with the magnitude. The velocity takes into account the sign which indicates the direction of the movement. For example, the value is -5 m/s. The speed is 5 m/s, but the velocity is 5 m/s moving downwards because the negative sign denotes downward movement or movement to the left.
        
             
        
        
        
This is a tricky question. All that matters are ratios of percentages, not percentages themselves. So no one should directly compare 27.2 with 42.9. We must and shall compare the ratios (27.2 to 72.8) and (42.9 to 57.1).
Take them both down to 1 to and see what happens.
Working out the formulas knowing atomic masses is a bit beside the point; this is how people first DISCOVERED the idea of atomic mass.
A
 Carbon Oxygen
 27.2g 72.8g (100-27.2)
Moles 27.2/12 72.8/16
 2.27 4.55
Ratio 1 2
Do the same with the other
 
        
                    
             
        
        
        
I’m not to sure but let me figure it out hold up