Answer:
B according to the picture 
Explanation:
Star of 3 stellar masses => red supergiant=>supernova=>neutron star 
 
        
             
        
        
        
Roughly 1609 meters in one mile
 
        
             
        
        
        
Harder. Not compressible(unless using an extremely strong force). Non-metal have more of a chance of breaking than metals.
        
             
        
        
        
The statement which is true of a wave that’s propagating along the pavement and girders of a suspension bridge is A. The wave is mechanical, with particles vibrating in a direction that is parallel to that of the wave, forming compressions and rarefactions.
        
                    
             
        
        
        
Answer:
 -15 m/s
Explanation:
The computation of the velocity of the 4.0 kg fragment is shown below:
For this question, we use the correlation of the momentum along with horizontal x axis
Given that
Weight of stationary shell = 6 kg
Other two fragments each = 1.0 kg
Angle = 60
Speed = 60 m/s
Based on the above information, the velocity = v is 



= -15 m/s