The answer is a because tjhey do move at a molecular movemn
        
             
        
        
        
there is 1000 grams in 1 kilogram 
Divide
80/1000 = 0.08
0.08 kilograms is your answer
hope this helps
 
        
             
        
        
        
Answer:
The value of each charge is 4.22 x 10⁻⁵ C
Explanation:
Given;
distance between the two identical charges, d = 2 m
the force of repulsion between these two charges, F = 4N
Apply Coulomb's law;

Therefore, the value of each charge is 4.22 x 10⁻⁵ C
 
        
             
        
        
        
Answer:3.51 
Explanation:
Given
Coefficient of Friction 
Consider a small element at an angle \theta having an angle of 
Normal Force

Friction 

and 







 
        
             
        
        
        
You forgot to add a photo.