Answer:

Explanation:
Given,
mass of the object,m = 0.30 Kg
initial speed, v_i = 3 m/s
time of collision = 0.20 s
final speed, v_f = -4 m/s
Impulse = change in momentum



Hence, impulse of the object is equal to 
 
        
             
        
        
        
Answer:
 Damian here! (ノ◕ヮ◕)ノ*:・゚✧ 
Stretching is used to improve range-of-motion (ROM) of a joint, but why? The most common reason is that the joint ROM is limited and is somehow affecting performance of a desired activity. Stretching is also used as a preventative measure.
Explanation:hope this helps? :))
 
        
             
        
        
        
What type of change occurs when water changes from solid to a liquid	a phase change a physical change and irreversible change both A and the
        
             
        
        
        
Answer:
d
Explanation:
Ya gon find the Kenitic Energy first 
K=½mv²===> K=½×0.2×(0.2)²===> 0.1(0.04)===> 0.004
and now the replacement:
0.004=½×0.4V²====> v²=0.02===> V=0.14m/s