Answer: 
Explanation:
The diffraction angles  when we have a slit divided into
 when we have a slit divided into  parts are obtained by the following equation:
 parts are obtained by the following equation:
 (1)
 (1)
Where:
 is the width of the slit
 is the width of the slit
 is the wavelength of the light
 is the wavelength of the light  
 is an integer different from zero.
 is an integer different from zero.
Now, the second-order diffraction angle is given when  , hence equation (1) becomes:
, hence equation (1) becomes:
 (2)
 (2)
Now we have to find the value of  :
:
 (3)
 (3)
Then:
 (4)
   (4)
 (5)
   (5)
Finally:
 (6)
   (6)
 
        
             
        
        
        
Newton's first law of motion is that an object in motion will tend to stay in motion unless an external force acts upon it.
        
                    
             
        
        
        
Step 1 : Get your supply list together
Step 2 : Pick what model you want to do
Step 3 : Ask for a partner 
Step 4 : Complete  the model and take your time.
Step 5 : Read the directions carefully 
        
             
        
        
        
Answer:
The child represented by a star on the outside path.
Explanation:
 
        
             
        
        
        
Answer:
On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects. At Earth's surface the acceleration of gravity is about 9.8 metres (32 feet) per second per second.