A, 2 molcules
H2O is one molecule, it has 3 atoms (two hydrogen and one oxygen)
2 H2O are two water molecules
        
                    
             
        
        
        
Basically, you want to take the integral of each interval and compare them. The two intervals with the same integral represent equal displacement of the particle. And since delta(x) is always 2, all you have to do is average the initial and final velocities of each interval and multiply by two to find total displacement. 
 Hope it helped. 
 Edit to show calculations: 
 2 * [ (0 + 10)/2 ] = 10 for interval AB 
 2 * [ (7 + 3)/2 ] = 10 for interval DE
        
             
        
        
        
Answer:
It can do work on an object by moving it or changing it.
Explanation:
Brainliest?
 
        
                    
             
        
        
        
Momentum of car
Given: Mass m= 1,400 Kg;    V = 6.0 m/s
Formula:  P = mv    
                P = (1,400 Kg)(6.0 m/s)
                P = 8,400 Kg.m/s
Velocity of the rider to have the same momentum as a car.
Mass of rider and bicycle  m = 100 Kg
P = mv
V = P/m
V = 8,400 Kg.m/s/100 Kg
V = 84 m/s