Answer:

Explanation:
the variations in riser height or tread depth should not be grater than 
 that is equal to 9.5 mm but the maximum riser height should be the  
  but variation in riser height should not exceed to 
. The minimum riser height should be 7 inches which is equal to the 178 mm
 
        
             
        
        
        
The answer to this question is Helium
        
             
        
        
        
Loose 10 pounds im pretty sure
        
             
        
        
        
Answer:
15.7m/s
Explanation:
To solve this problem, we use the right motion equation. 
  Here, we have been given the height through which the ball drops;
  Height of drop = 14.5m - 1.9m  = 12.6m 
 The right motion equation is; 
       V²  = U² + 2gh 
V is the final velocity 
U is the initial velocity  = 0 
g is the acceleration due to gravity  = 9.8m/s²
h is the height
   Now insert the parameters and solve; 
        V² = 0² + 2 x 9.8 x 12.6 
       V²  = 246.96 
        V = √246.96  = 15.7m/s
 
        
             
        
        
        
Answer:
#2) The spaceship's forward motion must be slowed down so the earth's gravitational pull on it will be stronger than the ship's forward motion.