Answer:
 
Explanation:
given.
magnification(m) = 400 x
focal length (f_0)= 0.6 cm
distance between eyepiece and lens (L)= 16 cm
Near point (N) = 25 cm
focal length of the eyepiece (f_e)= ?
using equation 
 
 
 
 
  
 
 
 
        
             
        
        
        
Answer:
f =ma = 0.015 * 55 = 0.825 N 
so yeah that's ur ans 
 
        
                    
             
        
        
        
D 
The motion of an object in a circle at a constant speed.
        
             
        
        
        
Answer: Speed
Explanation:
Speed is the time it takes something to travel a certain distance. Accelaration is the rate at which an object's speed changes. Velocity is a vector of the object's speed and direction.