Explanation:
Below is an attachment containing the solution. 
 
        
             
        
        
        
Yes , increased tension suggests increased molecular attraction between the molecules of the ropes which affect the increase in the speed of wave.
        
             
        
        
        
Answer:
Uh No thanks but make me brainiest!
Explanation:
 
        
                    
             
        
        
        
It makes it easier to see in dark places
        
             
        
        
        
Answer:
10989.55932 rad/s
Explanation:
m = Mass of object
M = Mass of neutron star = 
R = Radius of neutron star = 13000 m
G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²
 = Angular speed
 = Angular speed
Here, the gravitational force will balance the centripetal force

The greatest possible angular speed an object can have is 10989.55932 rad/s