In a closed system, the loss of momentum of one object  is same as________ the gain in momentum of another object
according to law of conservation of momentum, total momentum before and after collision in a closed system in absence of any net external force, remains conserved . that is 
total momentum before collision = total momentum after collision 
P₁ + P₂ = P'₁ + P'₂ 
where P₁ and P₂ are momentum before collision for object 1 and object 2 respectively.
P'₁ - P₁  = - (P'₂ -  P₂)
so clearly gain in momentum of one object is same as the loss of momentum of other object 
 
        
             
        
        
        
When you are going down you pick up more speed
        
             
        
        
        
 Answer:
L = 8694 Kg.m²/s
Explanation:
r = 270 ĵ m 
v = 14 î m/s
m = 2.3 kg
θ = 90º
L = ?
We can apply the equation
L = m*v*r*Sin θ
L = (2.3 kg)*(14 m/s)*(270 m)*Sin 90º = 8694 Kg.m²/s
 
        
             
        
        
        
the more pressure put on the string, the more frequency and higher pitch.
 
        
             
        
        
        
Answer:
you count the squares or messure it
Explanation:
you can raw equal squares about 1 cm wide if possible all equal and count the squares eg theres 10 squares (small hand) so that would be 10cm squared