Answer:
a. the index of refraction for air is slightly larger for blue than for red
 
        
             
        
        
        
Answer
Given,
Energy absorbed, 
Energy expels,
Temperature of cold reservoir, T = 27°C
a) Efficiency of engine
  
  

b) Work done by the engine
  
  
  
c) Power output 
      t = 0.296 s
    
    
    
 
        
             
        
        
        
Newtons First Law of Motion:
An object at rest stays at rest and an object in motion<span> stays in </span>motion <span>with the same speed and in the same direction unless acted upon by an unbalanced force.</span>
Therefore, the relationship between force and motion is that it takes force to change the speed or direction of any object in motion.
        
             
        
        
        
Work done = force x distance = 40 x 2 = 80 Joules.