Answer:
valorant valorant valorant is the best
 
        
                    
             
        
        
        
Answer:
Explanation:
We use kinetic friction when a body is moving i.e.  for calculations.
 for calculations.
Static friction is used when a body is in rest while kinetic friction is used when a body is moving and its value is quite low as compared to static friction .
Static friction value increases as we apply more force while kinetic friction occurs when there is relative motion between bodies.
 
        
             
        
        
        
Answer:
4.17x10^-3 kW/K
Explanation:
Detailed explanation and calculation is shown in the image below 
 
        
             
        
        
        
Answer:
a). Work transfer = 527.2 kJ
b). Heat Transfer = 197.7 kJ
Explanation:
Given:
 = 5 Mpa
 = 5 Mpa
 = 1623°C
 = 1623°C
                        = 1896 K
 = 0.05
 = 0.05 
Also given 
Therefore,  = 1
 = 1  
R = 0.27 kJ / kg-K
 = 0.8 kJ / kg-K
 = 0.8 kJ / kg-K
Also given : 
    Therefore,  =
 = 
                      
                       = 0.1182 MPa
 = 0.1182 MPa
a). Work transfer, δW = 
                                   ![\left [\frac{5\times 0.05-0.1182\times 1}{1.25-1}  \right ]\times 10^{6}](https://tex.z-dn.net/?f=%5Cleft%20%5B%5Cfrac%7B5%5Ctimes%200.05-0.1182%5Ctimes%201%7D%7B1.25-1%7D%20%20%5Cright%20%5D%5Ctimes%2010%5E%7B6%7D)
                               = 527200 J
                              = 527.200 kJ
b). From 1st law of thermodynamics,
Heat transfer, δQ = ΔU+δW
    = 
   =![\left [ \frac{\gamma -n}{\gamma -1} \right ]\times \delta W](https://tex.z-dn.net/?f=%5Cleft%20%5B%20%5Cfrac%7B%5Cgamma%20-n%7D%7B%5Cgamma%20-1%7D%20%5Cright%20%5D%5Ctimes%20%5Cdelta%20W)
   =![\left [ \frac{1.4 -1.25}{1.4 -1} \right ]\times 527.200](https://tex.z-dn.net/?f=%5Cleft%20%5B%20%5Cfrac%7B1.4%20-1.25%7D%7B1.4%20-1%7D%20%5Cright%20%5D%5Ctimes%20527.200)
   = 197.7 kJ