Both don’t have units beacuse they are ratios
        
             
        
        
        
Because gravity is constant 
<span>the only force acting in free-fall is gravity which points downward at 9.8 m/s</span>
        
             
        
        
        
Answer: 14 m/s
Explanation:
The speed  of a sound wave is given by the following equation:
 of a sound wave is given by the following equation:
 
 
Where:
 is the wavelength of the sound wave
 is the wavelength of the sound wave
 
 
 
 
Hence:
 
 
 
        
             
        
        
        
Answer:
v= 103.5 V; energy =1.65 x 10^-17
Explanation:
the deflected energy eV sin θ