Answer:
a) p=0, b) p=0, c) p= ∞
Explanation:
In quantum mechanics the moment operator is given by
               p = - i h’  d φ / dx
              h’= h / 2π
We apply this equation to the given wave functions
a)  φ =  
         .d φ dx = i k  
 
We replace
         p = h’ k  
         i i = -1
The exponential is a sine and cosine function, so its measured value is zero, so the average moment is zero
             p = 0
b) φ = cos kx
            p = h’ k sen kx
 The average sine function is zero,
           p = 0
c) φ =  
          d φ / dx = -a 2x   
          .p = i a g ’2x   
        The average moment is
          p = (p₂ + p₁) / 2
          p = i a h ’(-∞ + ∞)
          p = ∞
 
        
             
        
        
        
Fg=m•g || IE: Weight = mass x gravity
Therefore, the relationship are as follows:
mass and gravity are inversely proportional 
mass and weight are directly proportional
weight and gravity are directly proportional 
        
             
        
        
        
Answer:
1250 J
Explanation:
Work is said to be done when a force causes an object to move over a distance. The amount of work done (W) is calculated by multiplying the force by the distance traveled.
That is;
W = F × d
Where;
W = work done (J or N/m)
F = force (N)
d = distance (m)
Based on the information provided in this question, F = 5000N, d = 0.25m
Hence;
W = F × d
W = 5000 × 0.25
W = 1250J
Therefore, 1250Joules of work is done by the jack.
 
        
             
        
        
        
Answer:
7229 N
Explanation:
The gravitational force between the Death Star and the Millenium Falcon is given by:

where
 is the gravitational constant
 is the gravitational constant
 is the mass of the Death Star
 is the mass of the Death Star
 is the mass of the Millennium Falcon
 is the mass of the Millennium Falcon
 is the radius of the Death Star
 is the radius of the Death Star
Substituting numbers into the equation, we find the force

 
        
             
        
        
        
When a red giant has insufficient mass it pretty much sheds its outer layer to leave the center core know as the white dwarf