It would be 22 depths inside the glass of water.
        
             
        
        
        
Answer:
The value of spring constant is 266.01 
Explanation:
Given:
Mass of pellet  kg
 kg
Height difference of pellet rise  m
 m
Spring compression  m
 m
From energy conservation law,
Spring potential energy is stored into potential energy,
   
Where  spring constant,
 spring constant, 
   
   
    
 
Therefore, the value of spring constant is 266.01 
 
        
             
        
        
        
Answer:
a)   F = 3.2 10⁻¹⁰ N
, b)       v = 9.9 10⁷ m / s
Explanation:
a) The electric force is
        F = q E
The electric field is related to the potential reference
      V = E d
      E = V / d
Let's replace
     F = e V / d
Let's calculate
     F = 1.6 10⁻¹⁹ 28 10³ / 1.4 10⁻²
     F = 3.2 10⁻¹⁰ N
b) For this part we can use kinematics
           v² = v₀ + 2 a d
           v = √ 2 ad
Acceleration can be found with Newton's second law
         e V / d = m a
         a = e / m V / d
         a = 1.6 10⁻¹⁹ / 9.1 10⁻³¹ 28 10³ / 1.4 10⁻²
         a = 3,516 10⁻¹⁷ m / s²
Let's calculate the speed
        v = √ (2 3,516 10¹⁷ 1.4 10⁻²)
        v = √ (98,448 10¹⁴)
        v = 9.9 10⁷ m / s
 
        
             
        
        
        
Answer:

Explanation:
Path difference due to a transparent slab is given as

here we know that

now total shift in the bright fringe is given as

Also we know that the fringe width of maximum intensity is given as

now we have

now the shift is given as

given that the shift is

here we have

now plug in all values in it


