Answer:
The answer is "512 J".
Explanation:
bullet mass 
initial speed 
block mass  
initial speed  
final speed 
Let  will be the bullet speed after collision:
 will be the bullet speed after collision:
throughout the consevation the linear moemuntum
 
                  
The kinetic energy of the bullet in its emerges from the block

    
 
        
             
        
        
        
True because the kind of light we get is white light and everything we see is actually every colour except the color we are seeing because that is wwhat is reflected
 
        
             
        
        
        
Answer:
13.18 m/s
Explanation:
Let the velocity of sports utility car is
 -u as it is moving in opposite direction.
mc = 1200 kg, uc = 31.1 m/s
ms = 2830 kg, us = - u = ?
Using conservation of momentum
mc × uc + ms × us = 0
1200 × 31.1 - 2830 × u = 0
u = 13.18 m/s
 
        
             
        
        
        
Answer:
R=2F
Explanation:
As the forces are in same direction so the resultant force will be:
R=F+F
R=2F