Answer:
  ≈ 2.1 R
 ≈ 2.1 R
Explanation:
The moment of inertia of the bodies can be calculated by the equation
      I = ∫ r² dm
For bodies with symmetry this tabulated, the moment of inertia of the center of mass
Sphere                = 2/5 M R²
 = 2/5 M R²
Spherical shell    = 2/3 M R²
 = 2/3 M R²
The parallel axes theorem allows us to calculate the moment of inertia with respect to different axes, without knowing the moment of inertia of the center of mass
     I =  + M D²
 + M D²
Where M is the mass of the body and D is the distance from the center of mass to the axis of rotation
 Let's start with the spherical shell, axis is along a diameter
      D = 2R
     Ic =  + M D²
 + M D²
     Ic = 2/3 MR² + M (2R)²
     Ic = M R² (2/3 + 4)
     Ic = 14/3 M R²
The sphere
     Is = + M [
 + M [ ²
²
     Is = Ic
     2/5 MR² + M  ² = 14/3 MR²
² = 14/3 MR²
      ² = R² (14/3 - 2/5)
² = R² (14/3 - 2/5)
      = √ (R² (64/15)
 = √ (R² (64/15)
      = 2,066 R
 = 2,066 R
 
        
             
        
        
        
Answer:
Typically, atoms gain or lose electrons to achieve a stable electron configuration.
Explanation:
 
        
                    
             
        
        
        
Answer:
Solution given:
frequency[f]=60,500,000Hz
velocity[V]=300,000,000m/s
wave length=?
we have
wave length=
=
= =4.96 m
=4.96 m
Option A.4.96m
 
        
                    
             
        
        
        
Answer:

Explanation:
As we know that Far sighted person has near point shifted to 80 cm distance
so he is able to see the object 80 cm
now the distance of lens from eye is 2 cm
and the person want to see the objects at distance 10 cm
so here the image distance from lens is 80 cm and the object distance from lens is 8 cm
now from lens formula we have


