Answer:
erm they all should have same numbers of protons
 
        
                    
             
        
        
        
Answer:
Check the explanation
Explanation:
a) in solving the first question, we will be choosing a spherical ball of radius 1 m, Therefore the width of the object is the diameter = 2m.
b)Given that and according to the question, the radius of the electron's orbit = 1x105 x radius of the object = 1x105 x1 = 1x105 m
 
        
             
        
        
        
The analogous formula for magnetic fields is the Ampere's law.
To find the answer, we need to know about the Ampere's law of magnetism.
<h3>What's Ampere's law of magnetism?</h3>
Ampere's law states that the close line integral of magnetic field around a current carrying loop is directly proportional to the current enclosed within it. 
<h3>What's is the mathematical expression of Ampere's law?</h3>
Mathematically, Ampere's law is 
 B•dl= μ₀I
Thus, we can conclude that the analogous formula for gauss law is the Ampere's law in magnetism.
Learn more about the Ampere's law here:
brainly.com/question/17070619
#SPJ4
 
        
             
        
        
        
Solution :
Given data :
Mass of the merry-go-round, m= 1640 kg
Radius of the merry-go-round, r = 7.50 m
Angular speed, 
  rev/sec
                              
  rad/sec
                               = 5.89 rad/sec
Therefore, force required, 

    
  
    = 427126.9 N
Thus, the net work done for the acceleration is given by :
W = F x r
    = 427126.9 x 7.5
    = 3,203,451.75 J