Answer:Velocity can be represented by an arrow, with the length of the arrow representing speed and the way the arrow points representing direction. Objects have the same velocity only if they are moving at the same speed and in the same direction. ... The SI unit for velocity is m/s, plus the direction the object is traveling.
 
        
             
        
        
        
H<span>igh voltage demonstrations!</span>
        
                    
             
        
        
        
Answer:
The relationship is only between the coefficients A, E and J which is:
 . The remaining coefficients can be anything without any constraints.
. The remaining coefficients can be anything without any constraints.
Explanation:
Given:
The three components of velocity is a velocity field are given as:

The fluid is incompressible.
We know that, for an incompressible fluid flow, the sum of the partial derivatives of each component relative to its direction is always 0. Therefore,

Now, let us find the partial derivative of each component.

Hence, the relationship between the coefficients is:

There is no such constraints on other coefficients. So, we can choose any value for the remaining coefficients B, C, D, F, G and H.
 
        
             
        
        
        
The intensity of the light has no connection with the photoelectric effect.
That's what was so baffling about it before the particle nature of light 
was suspected ... a match with a blue flame might stimulate the 
photoelectric effect, but a high-power red searchlight couldn't do it.