Answer:
0.66
Explanation:
By using the formula 
u = v^2 / r g
Where u is coefficent of friction
u = 23.5 × 23.5 / (85 × 9.8)
u = 0.66
 
        
             
        
        
        
Uhhhhhhhhh just tryna get a point so I can ask a question so eh I’m using ur question heheheheheh
        
             
        
        
        
Answer:
Explanation:
Explain how a projectile might be modified to decrease the air resistance impacting its trajectory.
 
        
             
        
        
        
Answer:
sorry I dont now the answer bro i am so sorry xd ;'(
 
        
             
        
        
        
Answer:
Whats up Bmw,
 The organisms is caused when both the organisms or species are harmed, which is limited supply of at least one resource from food or even water used by both can be a factor.
Explanation:
Hope I helped you, and let me know if you need help on anything else :p