Complete Question 
The compete question is shown on the first uploaded question 
Answer:
The speed is  
  
Explanation:
From the question we are told that 
    The  distance of separation is  d =  4.00 m   
   The distance of the listener to the center between the speakers is  I =  5.00 m 
   The change in the distance of the speaker is by 
     The frequency of both speakers is 
Generally the distance of the listener to the first speaker is mathematically represented as 
        ![L_1  =  \sqrt{l^2 + [\frac{d}{2} ]^2}](https://tex.z-dn.net/?f=L_1%20%20%3D%20%20%5Csqrt%7Bl%5E2%20%2B%20%5B%5Cfrac%7Bd%7D%7B2%7D%20%5D%5E2%7D)
        ![L_1  =  \sqrt{5^2 + [\frac{4}{2} ]^2}](https://tex.z-dn.net/?f=L_1%20%20%3D%20%20%5Csqrt%7B5%5E2%20%2B%20%5B%5Cfrac%7B4%7D%7B2%7D%20%5D%5E2%7D)
         
Generally the distance of the listener to second speaker at its new position is  
           ![L_2  =  \sqrt{l^2 + [\frac{d}{2} ]^2 + k}](https://tex.z-dn.net/?f=L_2%20%20%3D%20%20%5Csqrt%7Bl%5E2%20%2B%20%5B%5Cfrac%7Bd%7D%7B2%7D%20%5D%5E2%20%2B%20k%7D)
        ![L_2  =  \sqrt{5^2 + [\frac{4}{2} ]^2 + 0.6}](https://tex.z-dn.net/?f=L_2%20%20%3D%20%20%5Csqrt%7B5%5E2%20%2B%20%5B%5Cfrac%7B4%7D%7B2%7D%20%5D%5E2%20%2B%200.6%7D)
         
  
Generally the path difference between the speakers is mathematically represented as 
         
Here 
 is the wavelength which is mathematically represented as 
          
=>    
=>    
   
=>    
   
Here n is the order of the maxima with  value of  n =  1  this because we are considering two adjacent waves 
=>    
       
=>    
  
 
        
             
        
        
        
Answer:
Video
Explanation:
Hope this helps! If it does, drop a 5 star!
 
        
                    
             
        
        
        
The momentum of a 5kg object that has a velocity of 1.2m/s is 6.0kgm/s. 
<h3> MOMENTUM:</h3>
Momentum of a substance is the product of its mass and velocity. That is;
Momentum (p) = mass (m) × velocity (v)
According to this question, an object has a mass of 5kg and velocity of 1.2m/s. The momentum is calculated thus:
Momentum = 5kg × 1.2m/s
Momentum = 6kgm/s. 
Therefore, the momentum of a 5kg object that has a velocity of 1.2m/s is 6.0kgm/s. 
Learn more about momentum at: brainly.com/question/250648?referrer=searchResults