Answer:
27 . 10^-7 or 27/1000
Explanation:
We use the Coulomb Law
k = Coloumb Constant
q1 and q2 are the charges
d is the distance between the spheres
 
        
             
        
        
        
from the question 
x₁ = x-coordinate = 8 
y₁ = y-coordinate = - 4 
m = slope of line = 2/3 
slope form of the line is given as 
(y - y₁ ) = m (x - x₁)
inserting the values 
(y - (- 4) ) = (2/3) (x - 8)
(3) (y + 4) = (2) (x - 8)
multiplying each term inside the bracket by 3  and 2 respective on left and right side 
3y + 12 = 2 x - 16 
2 x - 3 y - 16 - 12 = 0 
2 x - 3 y - 28 = 0 
 
        
             
        
        
        
I'm not 100% sure, but I believe what you mean is when they eject the old propulsion motors.  Yes, they land in the ocean and the US Navy retrieves them for later use.
        
             
        
        
        
The Calvin cycle<span> refers to the light-independent reactions in photosynthesis that take place in three key steps. Although the </span>Calvin Cycle<span> is not directly dependent on light, it is indirectly dependent on light since the necessary energy carriers (ATP and NADPH) are products of light-dependent reactions.
So basically it indirectly needs the light, even it's called light-independant reaction.
So the answer is the last one.</span>
        
                    
             
        
        
        
The answer to your question is meters.