Answer:
 F₁ / F₂ = 10
therefore the first out is 10 times greater than the second barrier
Explanation:
For this exercise let's use the relationship between momentum and momentum.
          I = F t = Δp
in this case the final velocity is zero
         F t = 0 -m v₀
         F = m v₀ / t
in order to answer the question we must assume that the two vehicles have the same mass and speed
 concrete barrier
         F₁ = -p₀ / 0.1
         F₁ = - 10 p₀
barrier collapses
          F₂ = -p₀ / 1
 let's look for the relationship of the forces
         F₁ / F₂ = 10
therefore the first out is 10 times greater than the second barrier
 
        
             
        
        
        
a ray of light is incident towards a plane mirror at an angles of 30degrees with the mirror surface. what will be the angles of reflection is 60degree.
 
        
             
        
        
        
<span>Your answer should be water flows without turning on a facet. Hope this helps!
</span>
        
                    
             
        
        
        
Collision domain is a portion in the network where there is a possibility of formation of packets. This occurs when two or more devices are able to send a packet to a single switch or port on the network that is shared, on the same time. It was noted that this collision domain reduces the efficiency of the network. 
For this item, the first packet is the whole switch with the three devices. Next one would be first of the three devices that is connected to the other port. Similarly, the third one would be the second of the three devices that is also connected to the switch. Therefore, the answer is 3.