Answer:
I think it is the first one 
 
        
                    
             
        
        
        
Answer:
I really don't know I'm sorry dude but I needs the points
 
        
                    
             
        
        
        
Answer:
Steel 
Explanation:
In fact, sound waves travel over 17 times faster through steel than through air. Sound waves travel over four times faster in water than it would in air
 
        
                    
             
        
        
        
V final = (Mass x V initial) + (Mass x V initial) /m + m
V = (0.04 x 300) + ( 0.5 x 0 ) / 0.04 + 0.5
V = 22.2 m/s
        
             
        
        
        
The genotype depends if the purple flower is heterozygous dominant of homozygous dominant. But the total possible phenotypes available is 2, purple or red.