Yes, this is a true statement.
gravity is so important.
        
                    
             
        
        
        
A because centrifugal is to velocity to how slow or fast something is  and centrifugal has expresssed as ac=v2 / r (1)<span />
        
                    
             
        
        
        
Electron<span>. the central part of an atom containing </span>protons<span> and </span>neutrons<span> ... which of the following is necessary to calculate the atomic </span>mass<span> of an element? ... which of the </span>statements correctly compares<span>the relative size of an ion to its neutral atom?</span>
        
             
        
        
        
m = mass of the box 
N = normal force on the box 
f = kinetic frictional force on the box 
a = acceleration of the box
μ = coefficient of kinetic friction 
perpendicular to incline , force equation is given as 
N = mg Cos30                                         eq-1
kinetic frictional force is given as 
f = μ N
using eq-1
f = μ mg Cos30    
parallel to incline , force equation is given as 
mg Sin30 - f = ma 
mg Sin30 - μ mg Cos30  = ma 
"m" cancel out
a = g Sin30 - μ g Cos30
inserting the values
1.20 = (9.8) Sin30 - (9.8) Cos30 μ
μ = 0.44 
 
        
             
        
        
        
It is basically a very tiny region centering around protons and neutrons in the center of a atom