Iron is a magnetic metal, and it is essential to the Earth's magnetic field!
Essentially it "records" (stores the information, maintains) the direction and orientation of the magnetic field.
Among others, the magnetic field protects the Earth from dangerous cosmic rays.  
        
             
        
        
        
Answer:
The first is the closest in absolute values.
The second two are vague and the last is approximate.
 
        
             
        
        
        
Answer:

Explanation:
We can calculate the acceleration experimented by the passenger using the formula  , taking the initial direction of movement as the positive direction and considering it comes to a rest:
, taking the initial direction of movement as the positive direction and considering it comes to a rest:

Then we use Newton's 2nd Law to calculate the force the passenger of mass m experimented to have this acceleration:

Which for our values is:

 
        
             
        
        
        
Answer:
The forces are a convergent
Explanation: