Answer:
Explanation:
We shall find the volume of stored gas at atmospheric pressure . 
P₁ V₁ = P₂ V₂
15.5 x 10⁶ x .02 = 10⁵ x V₂  ( atmospheric pressure is 10⁵ Pa )
V₂ = 3.1 m³ 
volume of one balloon = 4/3 x π r³ , r is radius of balloon 
= 4/3  π x .11³
= .050658 m³
no of balloon = total volume to be filled / volume of one balloon 
= 3.1 / .050658 
= 61 .2 
= 61 
 
        
             
        
        
        
Answer:
2. the volume of the square are the same
 
        
                    
             
        
        
        
Answer:
Explanation:
Impulse of a force is measured by force x time or F X t 
Impulse also equals change in momentum or 
F x t = m v₂ - m v₁
The given case is as follows 
in the first case 
F x t = mv - o = mv 
F = mv / t
in the second case
F₁ x 4 t = mv 
F₁ = 1/4 x mv /t 
F₁ = F / 4 
option a) is correct .
iii )
In the last case 
F₂ X t = m v/2 -0
F₂ = 1/2 x mv / t 
= 1/2 x F 
F₂ = F/2 
Option e ) is correct. 
 
        
             
        
        
        
No it does not . That is the answer