I think the answer is periodic motion.
        
             
        
        
        
Ohms law = v= Ir
V= 0.02 x 4000 = 80v
        
                    
             
        
        
        
Answer:
1)   P₁ = -2 D,   2) P₂ = 6 D
Explanation:
for this exercise in geometric optics let's use the equation of the constructor
            
where f is the focal length, p and q are the distance to the object and the image, respectively
1) to see a distant object it must be at infinity (p = ∞)
            
            q = f₁
2) for an object located at p = 25 cm
              
We can that in the two expressions we have the distance to the image, this is the distance where it can be seen clearly in general for a normal person is q = 50 cm
we substitute in the equations
1) f₁ = -50 cm
2)  
          
          = 0.06
 = 0.06
          f₂ = 16.67 cm
the expression for the power of the lenses is
           P = 
 where the focal length is in meters
            
1)       P₁ = 1/0.50
         P₁ = -2 D
2)     P₂ = 1 /0.16667
         P₂ = 6 D
 
        
             
        
        
        
Answer:
25 N
Explanation:
Work is a product of force and perpendicular distance moved. 
W=Fd where F is force exerted and d is perpendicular distance.
However, for this case, the distance is inclined hence resolving it to perpendicular so that it be along x-axis we have distance as 
Therefore, 
Making F the subject of the formula then
 where
 where  is the angle of inclination. Substituting 190 J for W then 18 degrees for
 is the angle of inclination. Substituting 190 J for W then 18 degrees for  and 8 m for d then
 and 8 m for d then
