Answer:
 the spring be displaced by 25.0 cm
Explanation:
The computation is shown below:
As we know that 
F= -K × x
So, 

Now  

= -0.250m
= 25.0 cm
Hence, the spring be displaced by 25.0 cm
 
        
             
        
        
        
The length of the inclined plane is approximately 12 ft
The situation forms a right angle triangle. 
<h3>Right triangle</h3>
Right triangle have one of its angle as 90 degrees.
Therefore,
The length of the inclined plane is the hypotenuse of the triangle. The length of the inclined plane can be found using trigonometric ratios.
height = 4 ft
angle(∅) = 19.45°
sin 19.45 = 4 / h
h = 4 / 0.33298412235
h = 12.0125847796
h = 12 ft
Therefore, the length of the inclined plane is approximately 12 ft
 
learn more on inclined plane:brainly.com/question/14163589?referrer=searchResults
 
        
             
        
        
        
Answer:
The resistance in first case is 12 Ω, power delivered is 12 W, and potential difference is 0.01 V
Explanation:
Given:
(A)
Current  A
 A
Voltage  V
 V
For finding the resistance,
   
   
   
    12Ω
 12Ω
(B)
For finding power delivered,
   
   
    Watt
 Watt
(C)
For finding the potential difference,
    
    
    
     V
 V
Therefore, the resistance in first case is 12 Ω, power delivered is 12 W, and potential difference is 0.01 V
 
        
             
        
        
        
closed and unsecure circuit
 
        
                    
             
        
        
        
<span>Notice for the Carbon question they were the same element and the shared the same number of protons. so i think  d. is the answer</span>