It won't be massive enough to make it hot enough to make any further reations.
        
             
        
        
        
The answer is D because it the tropical zone
        
                    
             
        
        
        
That is actually called the Wave Length.
 
        
             
        
        
        
Answer:
The final velocity is 28.14 m/s
Yes the angle of projection matters
Explanation:
Given;
initial velocity of the water balloon, u = 20 m/s
height of the building, h = 20 m
 let the final speed of the ball when it hits the ground = v
The final speed is calculated as follows;
v² = u² + 2gh
v² = (20)²  +  2(9.8)(20)
v² = 400 + 392
v² = 792
v = √792
v = 28.14 m/s
Yes the angle matters, if the balloon had been dropped at a certain angle, the final velocity would have been estimated using the following formula;

where;
θ is the angle of projection, which accounts for the vertical component of the velocity.